Tüm alıştırma soruları

2933 soru

Soru 421Soru →

An unlicensed assistive personnel informs the registered nurse (RN) that a postoperative client is experiencing severe pain. The RN, who is occupied with a new admission, hands a filled syringe to the practical nurse (PN) and asks the PN to administer the intravenous (IV) push morphine to the client. Which statement by the PN is the most appropriate response?

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Cevap: I am not permitted to administer intravenous push medications, and I cannot give a medication drawn up by someone else.

Cevap

The practical nurse must decline the task, stating they cannot administer IV push medications or give a medication that was prepared by another nurse.
The correct response identifies two critical safety and legal boundaries. First, the administration of intravenous (IV) push medications is outside the legal scope of practice for a practical nurse in most jurisdictions, as it requires rapid RN-level assessment of the client's physiological response. Second, fundamental medication safety protocols dictate that a nurse must never administer a medication that was drawn up or prepared by another individual, as this compromises the ability to independently verify the rights of medication administration.

Adım Adım Çözüm

1
Evaluate the delegated route of administration against the practical nurse scope of practice.
The administration of IV push medications requires rapid clinical assessment and is generally outside the standard practical nursing scope of practice.
Nurses must only accept assignments and perform tasks that fall within their legally defined scope to ensure client safety.
2
Evaluate the medication preparation safety principles.
The medication was drawn up by the RN, not the PN.
A fundamental principle of medication safety is that a nurse may only administer medications they have personally prepared in order to guarantee all 'rights' of administration.
3
Determine the most appropriate clinical response.
The PN must clearly and professionally refuse the delegation based on both the scope limitation and the safety violation.
Declining unsafe or out-of-scope delegations is a mandatory professional responsibility.

Anahtar Kavram

Scope of Practice and Medication Administration Safety
Soru 422Soru →

A practical nurse has finished providing care for a client on Contact and Droplet precautions. The nurse is currently wearing gloves, an isolation gown, a face shield, and a surgical mask. In what order should the nurse safely remove the personal protective equipment (PPE)? Arrange the steps in the correct sequence from first to last.

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Cevap

The correct doffing sequence is: 1) Remove gloves, 2) Remove face shield, 3) Remove gown, 4) Remove surgical mask, 5) Perform hand hygiene.
The standard sequence for removing PPE is designed to minimize the risk of self-contamination. Gloves are the most contaminated and are removed first. The face shield is removed next, handling only the clean back strap. The gown is then unfastened and rolled inside out. The mask is removed last to protect the airway while other items are doffed. Finally, hand hygiene is mandatory to remove any residual pathogens.

Adım Adım Çözüm

1
Identify the most contaminated item to remove first.
Gloves are the most contaminated and are removed and discarded first.
To prevent transferring pathogens to other surfaces, clean areas of PPE, or the face.
2
Determine the next item to remove that protects the eyes.
The face shield is removed next by grasping the clean back strap.
The front is contaminated; handling only the back strap protects the hands.
3
Determine the sequence for the gown.
The gown is removed third.
Unfastening and peeling it off inside out prevents contact with the contaminated front and sleeves.
4
Determine the sequence for the mask.
The surgical mask is removed fourth.
It continues to protect the respiratory tract during the removal of the gown and face shield.
5
Identify the final required action.
Perform thorough hand hygiene.
To remove any residual pathogens that may have inadvertently contaminated the hands during the doffing process.

Anahtar Kavram

Personal Protective Equipment (PPE) Doffing Sequence
Soru 423Soru →

A practical nurse (PN) is observing a client who is receiving a transfusion of packed red blood cells. Ten minutes into the transfusion, the client reports sudden lower back pain, chills, and shortness of breath. In what order should the PN perform the following actions to minimize client risk?

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Cevap

The correct sequence is to first stop the transfusion, then maintain the IV line with new tubing and normal saline, assess the client's vital signs, notify the RN and provider, and finally prepare the blood equipment for laboratory return.
The correct sequence prioritizes immediate risk mitigation by stopping the source of harm (the blood). Next, venous access is secured with uncontaminated tubing to prevent flushing residual blood into the client. Only after the client is safe from further immediate harm are assessments performed and the RN/provider notified for advanced orders. Finally, administrative and diagnostic steps like saving the equipment are completed.

Adım Adım Çözüm

1
Stop the transfusion completely.
The administration of the offending blood product is halted.
This is the most critical first step to prevent further physiological harm during a suspected hemolytic or allergic reaction.
2
Disconnect the tubing and attach a new line with normal saline.
Venous access is maintained without administering more blood.
Flushing the existing tubing would push the remaining reactive blood in the line into the client's circulation, exacerbating the reaction.
3
Measure vital signs and oxygen saturation.
Baseline hemodynamic and respiratory data are collected.
Current physiological status must be evaluated to determine the severity of shock or respiratory distress.
4
Notify the RN and healthcare provider.
Higher-level care and emergency interventions are initiated.
The practical nurse must escalate life-threatening acute changes so the RN and provider can prescribe and administer emergency treatments.
5
Prepare the blood bag and tubing for return.
The physical evidence is ready for laboratory analysis.
The blood bank must test the product and tubing to identify the specific type of reaction once the client is safely stabilized.

Anahtar Kavram

Transfusion Reaction Emergency Management
Soru 424Soru →

A 74-year-old client is admitted with an exacerbation of chronic obstructive pulmonary disease (COPD) and is receiving oxygen at 2 L/min via nasal cannula. During a routine check, the practical nurse (PN) observes that the client is newly agitated, attempting to pull off the oxygen tubing, and confused about their location. The client's heart rate is 108 beats/min and blood pressure is 102/64 mm Hg. Which action should the PN take first?

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Cevap: Measure the oxygen saturation and observe the client's respiratory effort.

Cevap

Measure the oxygen saturation and observe the client's respiratory effort.
In an older adult with a respiratory condition, new-onset agitation, confusion, and restlessness are frequently the earliest indicators of hypoxia. According to the ABC (Airway, Breathing, Circulation) framework, the practical nurse must immediately prioritize respiratory data collection—such as oxygen saturation and respiratory effort—to determine if the client's physiological condition is acutely deteriorating.

Adım Adım Çözüm

1
Analyze the client's clinical presentation.
The client has a history of COPD and is presenting with new-onset agitation, confusion, and mild tachycardia (HR 108).
Identifying acute changes from baseline is essential for early recognition of physiological deterioration.
2
Correlate the symptoms with potential physiological causes.
In older adults, restlessness and sudden confusion are classic early signs of hypoxia (inadequate oxygenation to the brain), not just behavioral issues.
The brain is highly sensitive to drops in oxygen; altered mental status is often the first cue before cyanosis or severe vital sign collapse occurs.
3
Apply the ABC (Airway, Breathing, Circulation) prioritization framework.
Before intervening with medications or psychological support, the PN must gather data related to 'Breathing'.
Measuring oxygen saturation and work of breathing provides objective data to confirm hypoxia and guide emergency interventions or RN notification.

Anahtar Kavram

Recognizing early signs of hypoxia and prioritizing respiratory data collection
Soru 425Soru →

A licensed practical nurse (LPN) is assisting with the care of a client who is 6 hours postoperative following a subtotal thyroidectomy. Which of the following nursing actions are appropriate to reduce the client's risk for complications? Select all that apply.

Geçerli olan tümünü seçin

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Cevap: Verify that a tracheostomy tray and working suction equipment are immediately available at the bedside.; Promptly notify the registered nurse if the client's serum calcium level is reported as 7.4 mg/dL (1.85 mmol/L).; Maintain the client in a semi-Fowler's position with pillows supporting the head and neck to prevent hyperextension.

Cevap

The correct actions include verifying bedside availability of a tracheostomy tray and suction, notifying the registered nurse of the critically low serum calcium level, and maintaining the client in a semi-Fowler's position with neck support.
The correct actions prioritize the most life-threatening risks associated with a thyroidectomy. Maintaining a semi-Fowler's position prevents stress on the incision, minimizing bleeding risk. Having emergency airway equipment ready ensures a rapid response if tracheal compression occurs from a hematoma. Reporting a calcium level of 7.4 mg/dL is critical, as it is abnormally low and suggests the parathyroid glands were damaged or removed, which can lead to life-threatening tetany.

Adım Adım Çözüm

1
Analyze the clinical scenario to identify the client's primary risks.
The client is post-thyroidectomy, placing them at high risk for airway obstruction, hemorrhage, and hypocalcemia (due to parathyroid damage).
Understanding procedure-specific risks is essential for selecting appropriate risk reduction strategies.
2
Evaluate each nursing action against the identified postoperative risks.
Equipment preparation (suction/tracheostomy), escalating critical lab values, and proper positioning directly mitigate these risks.
Nursing actions must directly address and prevent life-threatening complications.
3
Identify actions that represent clinical errors or fall outside the LPN scope of practice.
Normalizing signs of shock, delegating clinical assessments to a UAP, and ignoring stridor in favor of pain management are dangerous errors.
Safe practice requires recognizing abnormal findings, adhering to delegation rules, and prioritizing ABCs (Airway, Breathing, Circulation).

Anahtar Kavram

Post-thyroidectomy risk reduction involves prioritizing airway patency, monitoring for signs of hemorrhage (frequent swallowing, vital sign changes), and identifying hypocalcemia.
Soru 426Soru →

An older adult client is recovering in the surgical unit 4 hours after an exploratory laparotomy. The practical nurse (PN) reviews the client's current clinical status. Which of the following findings indicate an expected post-operative progression? Select all that apply.

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Cevap: Scant amount of serosanguineous drainage on the surgical dressing; Incisional pain reported as 4 on a 0 to 10 scale; Hypoactive bowel sounds in all four quadrants

Cevap

The expected post-operative findings are scant serosanguineous drainage, an incisional pain level of 4 out of 10, and hypoactive bowel sounds.
In the immediate post-operative period following an exploratory laparotomy, the body undergoes expected physiological adaptation. Normal findings include hypoactive bowel sounds (due to anesthesia and surgical manipulation), mild to moderate incisional pain, and scant serosanguineous (pink/red) drainage on the dressing. These parameters indicate a normal recovery trajectory.

Adım Adım Çözüm

1
Evaluate the surgical dressing drainage.
Scant serosanguineous drainage is identified as normal.
Light pinkish-red drainage is typical in the first 24 to 48 hours after an abdominal procedure.
2
Assess the gastrointestinal and pain status.
Pain is 4/10 and bowel sounds are hypoactive.
Anesthesia and bowel manipulation temporarily slow peristalsis, and moderate localized pain is a standard post-operative outcome.
3
Identify findings that require immediate escalation.
Oliguria (15 mL/hr), new confusion, and hypoxia (88% oxygen saturation) are flagged as abnormal.
These findings indicate potential shock, impaired perfusion, or airway compromise, meaning they are unexpected and require urgent intervention.

Anahtar Kavram

Recognizing expected post-operative physiological adaptation versus early signs of acute clinical deterioration.
Soru 427Soru →

While planning care for a client who underwent a left below-the-knee amputation 48 hours ago, the practical nurse considers interventions to promote mobility and prevent musculoskeletal complications. Which actions should be included in the client's care plan? Select all that apply.

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Cevap: Assist the client into a prone position for 30 minutes three times a day.; Ensure the client's left knee remains fully extended while resting in bed.; Instruct the client to perform active range-of-motion exercises with the right leg.

Cevap

The nurse should assist the client into a prone position periodically, ensure the left knee remains extended, and instruct the client to perform active range-of-motion exercises on the unoperated leg.
The correct interventions focus on preventing flexion contractures and maintaining strength. Prone positioning stretches the hip flexors, keeping the knee extended prevents hamstring shortening, and exercising the unaffected limb preserves mobility for future rehabilitation.

Adım Adım Çözüm

1
Analyze the client's post-operative timeframe.
The client is 48 hours post-operation for a below-the-knee amputation.
Timing dictates appropriate positioning; elevation is only acceptable in the first 24 hours.
2
Identify the primary musculoskeletal risks for this specific procedure.
A below-the-knee amputation carries a high risk for both hip and knee flexion contractures.
Preventing contractures is essential for future prosthesis fitting and ambulation.
3
Evaluate each intervention against the goal of preventing hip and knee flexion.
Prone positioning and knee extension prevent contractures, while pillows, knee gatches, and prolonged sitting promote them.
Selecting the correct evidence-based basic care measures ensures safe recovery.

Anahtar Kavram

Prevention of hip and knee flexion contractures is a primary basic care priority following a below-the-knee amputation.
Soru 428Soru →

A practical nurse is assisting with the care of a client who underwent a bedside left-sided thoracentesis 1 hour1\text{ hour} ago. During the current assessment, the client appears highly restless and reports a sudden increase in shortness of breath. The client's vital signs are: blood pressure 102/64 mm Hg102/64\text{ mm Hg} (baseline 138/82 mm Hg138/82\text{ mm Hg}), heart rate 114 beats/min114\text{ beats/min}, and respiratory rate 28 breaths/min28\text{ breaths/min}. The nurse notes asymmetrical chest wall expansion and a subtle deviation of the trachea to the right. Which action should the practical nurse take first?

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Cevap: Apply supplemental oxygen and urgently notify the supervising registered nurse or rapid response team.

Cevap

The practical nurse should immediately apply supplemental oxygen and escalate the situation by notifying the supervising registered nurse or rapid response team.
The client is exhibiting classic signs of a tension pneumothorax, a severe and life-threatening complication of a thoracentesis. The accumulation of air in the pleural space causes mediastinal shift (evidenced by tracheal deviation) and hemodynamic collapse (evidenced by dropping blood pressure and rising heart rate). As this is a medical emergency requiring advanced intervention (such as needle decompression), the practical nurse's most critical role is to support oxygenation and immediately escalate to the RN or rapid response team.

Adım Adım Çözüm

1
Analyze the assessment findings in the context of the recent procedure.
The client has restlessness, tachypnea, tachycardia, hypotension, asymmetrical chest expansion, and tracheal deviation following a thoracentesis.
Recognizing early and late signs of procedural complications is a critical component of risk reduction.
2
Identify the underlying complication indicated by the clinical data.
The specific combination of tracheal deviation, asymmetrical chest movement, and hemodynamic instability strongly indicates a developing tension pneumothorax.
A tension pneumothorax is a known, life-threatening complication of pleural space access that traps air in the chest, compressing the heart and contralateral lung.
3
Determine the priority, scope-appropriate nursing action.
The nurse must initiate basic supportive care (oxygen therapy) and immediately notify higher-level providers (RN/Rapid Response).
Treating a tension pneumothorax requires advanced interventions (needle decompression, chest tube) which fall outside the LPN scope, making immediate escalation the priority.

Anahtar Kavram

Recognizing and responding to severe procedural complications (tension pneumothorax) within the practical nursing scope of practice.
Soru 429Soru →

A licensed practical nurse (LPN) is reviewing the electronic health record of a client admitted with a mechanical small bowel obstruction. The client has a nasogastric (NG) tube connected to low continuous wall suction, which has drained 1,800 mL of fluid over the last 24 hours. Which assessment finding represents the greatest potential for a life-threatening complication and requires immediate reporting to the registered nurse?

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Cevap: A morning serum potassium level of 2.8 mEq/L

Cevap

A morning serum potassium level of 2.8 mEq/L
The correct answer is the serum potassium level of 2.8 mEq/L. Gastric secretions are rich in electrolytes, particularly potassium. The removal of 1,800 mL of gastric fluid significantly increases the risk for severe hypokalemia (normal range is 3.5 to 5.0 mEq/L). A level of 2.8 mEq/L is a critical value that can lead to fatal cardiac dysrhythmias, directly threatening circulation. This requires immediate escalation to the registered nurse for urgent intravenous replacement therapy.

Adım Adım Çözüm

1
Analyze the intervention and its physiological effects.
The client has an NG tube to suction that has removed a large volume (1,800 mL) of gastric fluid.
Gastric fluid contains high concentrations of electrolytes, primarily potassium, chloride, and hydrogen ions.
2
Evaluate the risk potential based on the fluid loss.
The massive removal of gastric contents places the client at severe risk for metabolic alkalosis and hypokalemia.
Depletion of these specific electrolytes must be anticipated when reviewing laboratory data and assessing the client.
3
Prioritize the assessment findings to identify the most life-threatening complication.
A potassium level of 2.8 mEq/L is critically low and poses an immediate threat of fatal cardiac dysrhythmias.
While elevated BUN and borderline vital signs indicate dehydration, they are expected secondary issues. The critical electrolyte imbalance directly threatens circulation and requires urgent RN escalation.

Anahtar Kavram

Hypokalemia Risk with Nasogastric Suction
Soru 430Soru →

An adult client on a medical-surgical unit reports severe abdominal cramping and multiple episodes of watery stool. Laboratory results confirm a *Clostridioides difficile* infection. Which interventions are appropriate for managing this client's care environment? Select all that apply.

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Cevap: Don a disposable gown and gloves before crossing the threshold into the client's room.; Dedicate a stethoscope, blood pressure cuff, and thermometer specifically for this client's use.; Perform hand hygiene meticulously with soap and water after completing client care.

Cevap

The appropriate interventions are to don a disposable gown and gloves before entering the room, dedicate reusable medical equipment exclusively for this client, and perform hand hygiene using soap and water.
*Clostridioides difficile* is an enteric pathogen that causes severe diarrhea and requires strict Contact Precautions. To prevent cross-contamination, healthcare workers must don a gown and gloves prior to entering the client's room. Additionally, any reusable medical equipment should remain dedicated strictly to that client's use. Because *C. difficile* forms highly resilient spores that are not destroyed by alcohol-based hand sanitizers, healthcare personnel must perform hand hygiene with soap and water to physically wash the spores off the hands and down the drain.

Adım Adım Çözüm

1
Identify the required isolation precautions based on the pathogen.
Clostridioides difficile requires strict Contact Precautions.
The pathogen is transmitted via the fecal-oral route and spores can heavily contaminate the client's environment.
2
Determine the correct protocol for Personal Protective Equipment (PPE) and environmental controls.
Gowns and gloves must be worn upon entry and removed before exiting the room. Reusable equipment must be dedicated to the client.
This prevents spores from traveling outside the room on clothing or shared medical devices.
3
Select the appropriate hand hygiene method.
Soap and water must be used instead of alcohol-based hand sanitizers.
Alcohol does not eradicate C. difficile spores; the mechanical friction of washing physically rinses the spores away.
4
Evaluate the remaining options against legal and delegation principles.
Delegating assessment to a UAP and posting the specific diagnosis publicly are both incorrect actions.
Assessment is strictly a nursing duty, and publicizing a diagnosis breaches client confidentiality.

Anahtar Kavram

Infection control measures for *Clostridioides difficile* require strict Contact Precautions, dedicated equipment, and handwashing with soap and water.
Tahmini Süre:1m 30s
Soru 431Soru →

A practical nurse (PN) is preparing to obtain a capillary blood glucose reading for a client with type 2 diabetes mellitus. To ensure an accurate result and reduce the risk of infection, in what order should the PN perform the following actions? (Arrange the steps in the correct sequence.)

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Cevap

The correct sequence is to identify the client, cleanse the finger, let it air dry, puncture the skin and wipe the first drop, then test the second drop.
Performing the steps in this specific order guarantees both client safety and the exact accuracy of the diagnostic lab value. Identifying the client is always the priority. Cleansing the site removes surface bacteria and residual sugars. Allowing the alcohol to naturally air dry ensures it does not alter the glucose result or cause a burning sensation upon puncture. Wiping away the first drop of blood is crucial because it contains serous tissue fluid that dilutes the sample. The second drop provides an accurate capillary specimen, which is vital for safe medication administration.

Adım Adım Çözüm

1
Verify identity and explain the procedure.
The correct client is confirmed and prepared.
Prevents medication and diagnostic errors by ensuring the right patient is being tested.
2
Cleanse the lateral aspect of the finger.
The puncture site is sanitized.
Reduces the risk of infection and removes any external glucose (e.g., from food) on the skin.
3
Allow the alcohol to air dry.
The site is dry and ready for puncture.
Wet alcohol can cause stinging during puncture and can hemolyze the red blood cells, leading to an inaccurate reading.
4
Puncture the skin and wipe away the first drop of blood.
Tissue fluid is removed from the sample site.
The initial drop of blood is heavily mixed with interstitial serous fluid, which can artificially dilute the blood glucose concentration.
5
Apply the second drop of blood to the test strip.
An accurate glucose reading is obtained.
The second drop consists of pure capillary blood, providing the most reliable value for potential insulin administration.

Anahtar Kavram

Diagnostic Test Preparation and Specimen Collection
Soru 432Soru →

A client is recovering on the surgical unit following an abdominal procedure and receives a prescribed dose of intravenous morphine for severe pain. Shortly after, the practical nurse (PN) finds the client minimally responsive with a respiratory rate of 7 breaths/min. The PN immediately summons the registered nurse (RN), who administers intravenous naloxone. Fifteen minutes later, the client is fully awake and breathing at 16 breaths/min. Which action should the PN prioritize next?

Cevabı ve açıklamayı göster

Cevap: Monitor the client's respiratory rate and level of consciousness closely over the next several hours.

Cevap

Monitor the client's respiratory rate and level of consciousness closely over the next several hours.
Naloxone is an opioid antagonist used to reverse opioid-induced respiratory depression. However, its duration of action is significantly shorter (approximately 30 to 81 minutes) than that of morphine. As the naloxone is metabolized and cleared from the body, the residual morphine can cause a re-emergence of respiratory depression. Therefore, the most critical action is to closely monitor the client's respiratory rate, oxygenation, and level of consciousness for several hours to quickly identify and manage any recurring depression.

Adım Adım Çözüm

1
Analyze the pharmacological properties of the administered medications.
Naloxone is an opioid antagonist that reverses the effects of morphine, but it has a significantly shorter half-life (30 to 81 minutes) compared to most opioids.
Understanding drug pharmacokinetics is essential to anticipate the client's physiological response over time.
2
Identify the primary clinical risk for the client.
The client is at high risk for recurring respiratory depression as the naloxone wears off before the morphine is fully metabolized.
Patient safety requires anticipating and preventing life-threatening complications.
3
Determine the priority action within the PN's legal scope of practice.
Continuous and close monitoring of the client's respiratory status and level of consciousness is the most critical and appropriate intervention.
This ensures immediate detection of recurring respiratory depression while remaining within the boundaries of practical nursing practice.

Anahtar Kavram

Pharmacokinetics of opioid antagonists and post-reversal respiratory monitoring
Tahmini Süre:2m 0s
Soru 433Soru →

A practical nurse (PN) is caring for a client with a history of heart failure who is receiving a continuous intravenous (IV) infusion of 0.9% sodium chloride at 150 mL/hr for mild dehydration. During data collection, the PN notes the client's heart rate has increased from 80 to 118 bpm, and blood pressure has risen from 110/70 to 160/90 mmHg. The client becomes newly restless and states, "My chest feels tight and I cannot catch my breath." Which action should the PN take first?

Cevabı ve açıklamayı göster

Cevap: Elevate the head of the bed and decrease the IV infusion rate.

Cevap

The correct action is to elevate the head of the bed and decrease the IV infusion rate.
The correct answer directly addresses the client's symptoms of fluid volume overload and impending pulmonary edema. Elevating the head of the bed uses gravity to facilitate lung expansion and improve oxygenation (Breathing priority), while decreasing the IV fluid rate prevents further fluid accumulation in the vascular space (Circulation priority). This is the safest and most immediate prioritization of care before notifying the RN.

Adım Adım Çözüm

1
Analyze the clinical cues provided in the scenario.
The client has a rapid heart rate, elevated blood pressure, new-onset restlessness, and shortness of breath while receiving a high-volume IV fluid infusion.
Identifying these cues is necessary to recognize the development of fluid volume overload and impending pulmonary edema, especially in a client with a history of heart failure.
2
Prioritize interventions based on the ABCs (Airway, Breathing, Circulation).
The immediate need is to support the client's breathing and halt the circulatory fluid overload.
Respiratory distress is a life-threatening complication that takes absolute priority over routine monitoring, symptom documentation, or psychosocial reassurance.
3
Determine the appropriate action within the PN scope of practice.
The PN must immediately position the client upright to ease breathing, slow the IV to a keep-vein-open rate to prevent further fluid accumulation, and then escalate the situation to the RN.
These physical interventions quickly and safely stabilize the client's airway and circulation while awaiting further medical orders.

Anahtar Kavram

Fluid Volume Overload and ABC Prioritization
Tahmini Süre:1m 0s
Soru 434Soru →

A practical nurse (PN) in a pediatric clinic is preparing to administer the first dose of oral amoxicillin to a toddler diagnosed with acute otitis media. The toddler weighs 33 lbs33\text{ lbs}. The primary healthcare provider has prescribed 45 mg/kg/day45\text{ mg/kg/day} of amoxicillin, to be administered in two equally divided doses every 12 hours12\text{ hours}. The clinic pharmacy dispenses amoxicillin oral suspension at a concentration of 250 mg/5 mL250\text{ mg}/5\text{ mL}. How many milliliters (mL\text{mL}) should the PN administer for this single dose? Record your answer to the nearest tenth. Do not include units in your answer.

Cevabı ve açıklamayı göster

Cevap: 6.8

Cevap

6.8
To determine the correct dose, first convert the weight to kilograms (33 lbs÷2.2=15 kg33\text{ lbs} \div 2.2 = 15\text{ kg}). Next, calculate the daily dose (15 kg×45 mg/kg=675 mg/day15\text{ kg} \times 45\text{ mg/kg} = 675\text{ mg/day}). Divide by 2 for the single dose every 12 hours (337.5 mg/dose337.5\text{ mg/dose}). Finally, use the desired-over-have formula: (337.5 mg÷250 mg)×5 mL=6.75 mL(337.5\text{ mg} \div 250\text{ mg}) \times 5\text{ mL} = 6.75\text{ mL}, which rounds up to 6.8 mL6.8\text{ mL}.

Adım Adım Çözüm

1
Convert the client's weight from pounds to kilograms.
15 kg15\text{ kg}
Weight-based dosing requires the body weight to be calculated in kilograms.
2
Calculate the total daily dose prescribed.
675 mg/day675\text{ mg/day}
The prescription is written as a total daily amount based on the child's weight.
3
Determine the amount for a single dose.
337.5 mg/dose337.5\text{ mg/dose}
The medication is to be administered in two equally divided doses every 12 hours.
4
Calculate the liquid volume to administer for one dose.
6.75 mL6.75\text{ mL}
This calculation uses the available pharmacy concentration of 250 mg/5 mL250\text{ mg}/5\text{ mL} to find the required volume.
5
Round the final answer to the nearest tenth.
6.8 mL6.8\text{ mL}
Clinical calculations are typically rounded to the nearest tenth for volumes greater than 1 mL1\text{ mL} to ensure safe and accurate measurement.

Anahtar Kavram

Pediatric Weight-Based Dosage Calculation
Soru 435Soru →

A practical nurse (PN) is preparing to administer an iron dextran intramuscular (IM) injection using the Z-track method to a client with severe iron deficiency anemia. The PN has already identified the client, donned gloves, cleansed the site, and prepared the syringe. In which order should the PN perform the following steps? (Arrange the actions from first to last)

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Cevap

The correct sequence for administering a Z-track IM injection is: pull the skin laterally, insert the needle at 90 degrees, inject the medication slowly, wait 10 seconds, and finally withdraw the needle before releasing the skin.
The Z-track method is designed to prevent irritating or staining medications (such as iron dextran) from leaking into the subcutaneous tissue. The correct sequence ensures the skin is displaced prior to needle insertion and remains displaced until after the needle is fully withdrawn. This creates a zig-zag path that permanently seals the medication within the muscle.

Adım Adım Çözüm

1
Pull the overlying skin and subcutaneous tissue laterally 1 to 1.5 inches.
The tissue is displaced from its normal alignment.
Displacing the tissue creates a staggered pathway that prevents medication leakage into the subcutaneous tissue.
2
Insert the needle at a 90-degree angle using a smooth, dart-like motion.
The needle enters the deep muscle.
A 90-degree angle ensures the medication reaches the vascular muscle layer rather than the subcutaneous fat.
3
Inject the medication slowly and steadily over several seconds.
The medication is delivered into the muscle.
Slow injection allows the medication to disperse evenly and minimizes tissue irritation.
4
Wait for 10 seconds while leaving the needle in place.
The medication begins to absorb.
Pausing prevents the medication from tracking back up the needle pathway immediately upon withdrawal.
5
Withdraw the needle smoothly and immediately release the retracted skin.
The needle track is sealed.
Releasing the skin after withdrawal restores the tissue alignment, sealing the track and locking the medication safely in the muscle.

Anahtar Kavram

Z-track method for intramuscular injections
Soru 436Soru →

A practical nurse is preparing to transfer a client with left-sided hemiparesis from the bed to a wheelchair. In what order should the nurse perform the following actions? Arrange the steps in the correct sequence.

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Cevap

The correct sequence is to first position and lock the wheelchair on the strong side, sit the client on the edge of the bed with proper footwear, apply a transfer belt, brace the weak leg, and finally instruct the client to stand, pivot, and reach for the armrests.
Safe transfer of a client with one-sided weakness (hemiparesis) requires prioritizing the use of the unaffected side and maintaining strict fall precautions. The environment must first be prepared by placing the locked wheelchair on the strong side. The client is then safely positioned at the edge of the bed with non-skid footwear. A transfer belt is applied for grip, and the nurse must brace the weak leg to prevent buckling before initiating the stand-and-pivot motion.

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1
Place the wheelchair parallel to the bed on the client's strong side and lock the wheels.
The environment is secured for a safe transfer.
Transferring toward the strong side allows the client to use their unaffected limbs to support their body weight.
2
Assist the client to sit on the edge of the bed and ensure they are wearing non-skid footwear.
The client is positioned upright and feet are protected from slipping.
Sitting allows time to assess for dizziness (orthostatic hypotension), and proper footwear prevents falls on smooth floors.
3
Secure a transfer belt around the client's waist over their clothing.
The transfer belt is securely fastened.
The belt provides the nurse with a firm, safe grip to assist with weight-bearing without pulling on the client's arms.
4
Face the client, maintain a wide base of support, and brace the client's left knee and foot.
The client's weak side is physically supported by the nurse.
Hemiparesis causes muscle weakness; bracing prevents the affected leg from buckling under the client's weight.
5
Instruct the client to stand, pivot on the right leg, and reach back for the wheelchair armrests.
The client is safely seated in the wheelchair.
Pivoting on the strong leg maximizes client independence and safety while completing the transfer.

Anahtar Kavram

Safe client transfer techniques for hemiparesis
Soru 437Soru →

While working in an endoscopy recovery unit, a practical nurse evaluates a client who underwent a colonoscopy with a polypectomy two hours prior. The client complains of a sudden onset of severe, sharp abdominal pain. During the assessment, the nurse palpates a firm, board-like abdomen and observes that the client's heart rate has increased from a pre-procedure baseline of 74 beats per minute to 118 beats per minute. Which action should the nurse take first?

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Cevap: Notify the registered nurse immediately about the abdominal changes and tachycardia

Cevap

Notify the registered nurse immediately about the abdominal changes and tachycardia
A firm, board-like abdomen accompanied by sudden severe pain and an increasing heart rate are classic indicators of a bowel perforation, a life-threatening complication of a colonoscopy. The priority action for the practical nurse is to escalate these critical findings immediately to the registered nurse or healthcare provider so that emergency surgical or medical interventions can be initiated.

Adım Adım Çözüm

1
Analyze the client's clinical presentation following the colonoscopy and polypectomy.
The client has sudden severe pain, a firm and board-like abdomen, and significant tachycardia.
Identifying abnormal post-procedural assessment findings is critical for recognizing complications.
2
Differentiate between expected procedural side effects and emergent complications.
While mild cramping is normal due to air insufflation, a rigid abdomen and tachycardia indicate a life-threatening bowel perforation.
Nurses must recognize when symptoms escalate from benign to emergent.
3
Determine the priority nursing intervention within the practical nurse's scope of practice.
The priority is to escalate the findings to the registered nurse or healthcare provider immediately.
A bowel perforation is a medical emergency that requires rapid collaborative intervention and potential surgery.

Anahtar Kavram

Recognizing and escalating signs of bowel perforation following an endoscopic procedure
Soru 438Soru →

An assigned client with peripheral edema and a history of heart failure is scheduled to receive a routine morning dose of oral torsemide. Review of the electronic health record reveals a morning serum potassium level of 2.7 mEq/L and a blood pressure of 108/64 mm Hg. What is the priority action for the practical nurse?

Cevabı ve açıklamayı göster

Cevap: Hold the diuretic medication and immediately communicate the laboratory results to the registered nurse.

Cevap

The practical nurse should withhold the torsemide and immediately notify the registered nurse about the critical potassium level.
Torsemide is a loop diuretic that promotes the excretion of water, sodium, and potassium. A serum potassium level of 2.7 mEq/L is critically low (the normal range is typically 3.5 to 5.0 mEq/L). Administering a potassium-wasting diuretic to a client who is already severely hypokalemic places them at immediate risk for life-threatening cardiac dysrhythmias. The practical nurse must safely withhold the dose and promptly escalate this critical laboratory finding to the registered nurse or provider to ensure patient safety.

Adım Adım Çözüm

1
Analyze the client's vital signs and laboratory values against the scheduled medication.
The serum potassium is 2.7 mEq/L, which indicates severe hypokalemia (normal range is typically 3.5 to 5.0 mEq/L).
Torsemide is a loop diuretic that causes potassium excretion, which can severely worsen an already low potassium level.
2
Determine the appropriate nursing intervention based on the practical nurse scope of practice.
The nurse must safely withhold the medication and escalate the critical laboratory finding.
Administering the medication could lead to life-threatening cardiac dysrhythmias, and independently altering a medical prescription is outside the practical nurse scope.

Anahtar Kavram

Safe medication administration and monitoring for adverse electrolyte effects of loop diuretics.
Soru 439Soru →

An 82-year-old client is admitted to the medical-surgical unit with a severe systemic infection and is prescribed scheduled doses of intravenous (IV) piggyback gentamicin and oral levofloxacin. During the morning assessment, the practical nurse (PN) observes that the client, who was alert and oriented the previous evening, is now highly agitated and disoriented to time and place. The client's morning laboratory results reveal a serum creatinine of 2.8 mg/dL (baseline was 0.9 mg/dL on admission). Which action should the PN take first regarding the client's care and scheduled medications?

Cevabı ve açıklamayı göster

Cevap: Withhold both the gentamicin and levofloxacin, and immediately notify the supervising registered nurse (RN) of the acute neurological changes and elevated creatinine level.

Cevap

The correct action is to withhold both the gentamicin and levofloxacin, and immediately alert the RN to the client's acute confusion and critical laboratory values.
The correct action demonstrates an understanding of pharmacology, gerontology, and safe scope of practice. The client is exhibiting signs of acute kidney injury, evidenced by a significantly elevated serum creatinine level. Gentamicin is highly nephrotoxic, and levofloxacin requires adequate renal clearance. Administering these medications during an acute kidney injury can lead to severe systemic toxicity. Furthermore, the sudden onset of confusion and agitation in an older adult indicates acute delirium, likely secondary to the infection or impending toxicity, which is a medical emergency. The practical nurse must advocate for client safety by withholding the potentially harmful medications and urgently escalating these critical findings to the registered nurse for provider intervention.

Adım Adım Çözüm

1
Analyze the client's morning laboratory results in the context of their prescribed medications.
The serum creatinine has increased from a baseline of 0.9 mg/dL to 2.8 mg/dL, indicating acute kidney injury (AKI). Gentamicin is a highly nephrotoxic aminoglycoside, and levofloxacin is renally cleared.
Administering nephrotoxic or renally cleared medications during an acute kidney injury can lead to severe, irreversible systemic toxicity.
2
Evaluate the client's sudden change in neurological status.
The client exhibits new-onset agitation and disorientation to time and place.
Acute, sudden confusion in an older adult is a hallmark sign of delirium, which is a medical emergency often triggered by infection, medication toxicity, or acute metabolic disturbances (such as AKI).
3
Determine the safest and most appropriate intervention within the practical nurse scope of practice.
The PN must hold the potentially harmful medications and immediately escalate these critical clinical findings to the supervising RN.
The PN is responsible for recognizing life-threatening changes, withholding contraindicated therapies, and reporting critical labs to the RN or provider for immediate intervention.

Anahtar Kavram

Pharmacokinetics, Geriatric Delirium, and Practical Nurse Scope of Practice in Medication Safety
Soru 440Soru →

A practical nurse (PN) is monitoring a client admitted with acute gastroenteritis and frequent episodes of vomiting. During the most recent data collection, the PN notes the client's blood pressure has decreased from 124/80 mm Hg to 98/62 mm Hg, and the heart rate has increased from 86 beats/min to 118 beats/min. The client's skin is cool and clammy. Which action is the priority for the PN to take?

Cevabı ve açıklamayı göster

Cevap: Immediately report the clinical findings to the supervising registered nurse.

Cevap

The priority action is to immediately report the clinical findings to the supervising registered nurse.
The client is exhibiting classic signs of hypovolemic shock, including tachycardia, hypotension, and cool, clammy skin, resulting from severe fluid volume loss. The priority for the practical nurse is to recognize this acute physiological decompensation and immediately notify the supervising registered nurse or healthcare provider so that rapid interventions, such as intravenous fluid resuscitation, can be initiated to stabilize the client's circulation.

Adım Adım Çözüm

1
Analyze the client's current vital signs and physical assessment data.
The client has sudden hypotension (98/62 mm Hg), tachycardia (118 beats/min), and cool, clammy skin following severe fluid loss.
Identifying abnormal data is the first step in recognizing physiological decompensation.
2
Correlate the findings with potential complications of the client's diagnosis.
The findings indicate a transition into hypovolemic shock due to excessive fluid loss from gastroenteritis.
Understanding the clinical picture allows the nurse to determine the urgency of the situation.
3
Determine the appropriate intervention within the practical nurse's scope of practice.
The PN must immediately communicate these critical findings to the RN or healthcare provider.
Hypovolemic shock requires rapid medical intervention, such as intravenous fluid resuscitation, which must be initiated by the RN or provider based on the PN's urgent report.

Anahtar Kavram

Recognition and Escalation of Hypovolemic Shock
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Tüm alıştırma soruları — NCLEX-PN | Examkin