Physiological Integrity

1313 questions

Question 601Question →

During morning rounds, a practical nurse (PN) enters a client's room with their prescribed oral medications. To ensure safe practice, which action must the PN take to confirm the client's identity before handing them the pills?

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Answer: Ask the client to state their full name and date of birth while checking their identification band.

Answer

Ask the client to state their full name and date of birth while checking their identification band.
The correct action demonstrates strict adherence to the 'Right Client' principle of medication administration. Safe practice requires verifying at least two distinct, acceptable client identifiers (such as the client's full name, date of birth, or medical record number) before giving any medication.

Step-by-Step Solution

1
Recall the rights of medication administration, specifically the 'Right Client' principle.
The standard protocol requires using at least two acceptable patient identifiers before administration.
This foundational safety check prevents medication errors caused by mistaken identity.
2
Evaluate each option against safe identification standards.
Only asking for the client's full name and date of birth meets the two-identifier requirement.
Room numbers, yes/no questions, and visual recognition are explicitly forbidden as primary identifiers.

Key Concept

Rights of Medication Administration: Right Client
Question 602Question →

A practical nurse is preparing to withdraw a prescribed medication from a glass ampule. In what order should the nurse perform the following steps? Arrange the steps from first to last.

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Answer

The correct sequence for withdrawing medication from an ampule begins with moving fluid to the bottom chamber, protecting the hands, breaking the ampule safely, using a filter needle to withdraw, and finally changing to an administration needle.
When preparing medication from an ampule, the priority is to ensure accurate dosage and safety from glass shards. First, tapping the ampule ensures all fluid is available to draw. Next, wrapping the neck protects the nurse's fingers, and breaking it away from the body protects the face. A filter needle is then essential to prevent aspirating glass particles. Finally, the filter needle must be discarded and replaced with a proper injection needle to ensure safe administration to the client.

Step-by-Step Solution

1
Tap the top of the ampule lightly.
Medication moves to the bottom chamber.
Ensures all medication is available for withdrawal and prevents spillage.
2
Wrap the neck with a sterile gauze pad or unopened alcohol swab.
The glass neck is safely covered.
Protects the nurse's fingers from sharp glass shards during opening.
3
Snap the neck of the ampule quickly and firmly away from the body.
The ampule is opened safely.
Prevents shattered glass from flying toward the nurse's face or body.
4
Withdraw the medication using a filter needle attached to the syringe.
Medication is drawn into the syringe without glass particles.
The filter needle traps any microscopic glass fragments that may have fallen into the liquid.
5
Replace the filter needle with an appropriate administration needle.
The syringe is safely prepared for client injection.
Filter needles are strictly for withdrawal and can cause severe tissue damage or inject trapped glass if used for administration.

Key Concept

Safe withdrawal of medication from a glass ampule
Estimated Time:1m 0s
Question 603Question →

A practical nurse is preparing to collect a sterile urine specimen for a culture and sensitivity test from a client who has an indwelling urinary catheter. Arrange the following procedural steps in the correct chronological order.

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Answer

The correct sequence is: clamp the tubing, scrub the port, withdraw the urine, transfer to the container, and unclamp the tubing.
Obtaining a sterile urine specimen from an indwelling catheter requires maintaining the closed drainage system to prevent infection and ensuring a fresh sample. First, the tubing is clamped to collect fresh urine. Next, the port is disinfected to prevent introducing microorganisms. Then, the sterile syringe is used to withdraw the sample, which is subsequently transferred to a sterile cup. Finally, the tubing must be unclamped immediately to restore continuous urinary flow and prevent bladder distension.

Step-by-Step Solution

1
Clamp the catheter drainage tubing just below the specimen collection port.
Fresh urine accumulates in the tubing.
Urine collected from the drainage bag is not sterile and cannot be used for a culture. Clamping ensures a fresh sample is available.
2
Scrub the needleless specimen collection port briskly with an antimicrobial swab.
The surface of the port is disinfected.
This prevents bacteria on the surface from entering the closed catheter system or contaminating the urine sample.
3
Attach a sterile syringe to the needleless port and withdraw the required volume of urine.
Urine is safely extracted from the tubing.
Using a needleless sterile syringe maintains the sterility of the closed drainage system while retrieving the sample.
4
Carefully transfer the aspirated urine into a sterile specimen container.
The sample is secured in a sterile environment.
Transferring the sample without touching the inside of the container keeps the urine uncontaminated for accurate laboratory analysis.
5
Unclamp the catheter drainage tubing and verify the unobstructed flow of urine.
Normal, continuous urine flow is restored.
Forgetting to unclamp the tubing can lead to urinary stasis, severe bladder distension, and an increased risk of infection.

Key Concept

Sterile Urine Specimen Collection from an Indwelling Catheter
Question 604Question →

A client being treated for a deep vein thrombosis is receiving a continuous intravenous heparin infusion. While the practical nurse is assisting the client with morning hygiene, the client suddenly complains of a severe, new-onset headache. The client's most recent activated partial thromboplastin time (aPTT) result is 118 seconds, and the normal control value is 30 seconds. Which of the following actions should the practical nurse take first?

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Answer: Immediately alert the supervising registered nurse about the client's symptom and laboratory value

Answer

The practical nurse should immediately alert the supervising registered nurse about the client's symptom and the elevated aPTT result.
The client is presenting with a new symptom (severe headache) that, when combined with a critically elevated aPTT (118 seconds), strongly suggests a life-threatening complication such as an intracranial hemorrhage. The therapeutic range for aPTT is typically 1.5 to 2.5 times the control value (45 to 75 seconds). A value of 118 seconds places the client at extreme risk for spontaneous bleeding. The primary responsibility of the practical nurse in this scenario is to recognize the risk potential and immediately escalate the situation to the supervising registered nurse for prompt evaluation and intervention.

Step-by-Step Solution

1
Analyze the laboratory data
The aPTT of 118 seconds is significantly higher than the therapeutic range (which is usually 1.5 to 2.5 times the control of 30 seconds, or 45 to 75 seconds).
To determine if the client is at an increased risk for adverse effects from the heparin infusion.
2
Correlate the laboratory data with the clinical symptom
A severe, new-onset headache combined with a critically high aPTT indicates an extreme risk for spontaneous bleeding, specifically a potential intracranial hemorrhage.
To recognize the presence of a life-threatening complication requiring immediate intervention.
3
Determine the appropriate nursing intervention within the practical nurse scope of practice
The situation requires immediate escalation to the registered nurse (RN) or healthcare provider.
The practical nurse must report critical findings and changes in condition to the RN for advanced assessment, collaborative management, and potential changes to the medical treatment plan.

Key Concept

Recognizing and Escalating Critical Laboratory Values and Complications
Estimated Time:1m 30s
Question 605Question →

Assigned to a 9-year-old pediatric client who is 8 hours post-tonsillectomy, a practical nurse (PN) reviews the medication administration record. The child weighs 66 lbs66\text{ lbs} (30 kg30\text{ kg}) and has a prescription for oral acetaminophen 15 mg/kg/dose15\text{ mg/kg/dose} every 4 hours PRN for moderate pain. The unit's automated dispensing cabinet supplies an acetaminophen oral suspension of 160 mg/5 mL160\text{ mg}/5\text{ mL}.

While obtaining the client's vital signs, the PN documents the following data:

AssessmentFinding
Heart Rate128 bpm128\text{ bpm}
Blood Pressure92/58 mmHg92/58\text{ mmHg}
Respiratory Rate22 breaths/min22\text{ breaths/min}
BehaviorRestless, frequent swallowing

The charge registered nurse (RN) is currently stabilizing another patient and verbally instructs the PN to "go ahead and give the child 14 mL14\text{ mL} of the PRN acetaminophen to manage their throat pain."

Which action demonstrates the most appropriate clinical judgment by the PN?

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Answer: Withhold the oral medication, maintain the client on nothing by mouth (NPO) status, and immediately alert the RN to assess for possible hemorrhage.

Answer

The most appropriate action is to withhold the oral medication, maintain the client on NPO status, and immediately alert the RN to assess for possible hemorrhage.
The correct action prioritizes client safety by recognizing the classic signs of postoperative tonsillar hemorrhage (frequent swallowing, restlessness, tachycardia). Despite the RN's verbal instruction and the mathematical accuracy of the 14 mL14\text{ mL} dose, the PN must utilize clinical judgment to withhold oral intake (preventing aspiration and maintaining NPO status for possible emergency surgery) and immediately escalate the critical findings.

Step-by-Step Solution

1
Analyze the client's clinical presentation.
The client exhibits frequent swallowing, restlessness, a heart rate of 128 bpm128\text{ bpm}, and a blood pressure of 92/58 mmHg92/58\text{ mmHg}.
Recognizing patterns in vital signs and behavior is essential for identifying postoperative complications like hemorrhage.
2
Evaluate the requested pharmacological intervention against the clinical data.
Although the RN's calculated dose of 14 mL14\text{ mL} is mathematically correct (30 kg×15 mg/kg=450 mg30\text{ kg} \times 15\text{ mg/kg} = 450\text{ mg}; 450÷160×5=14 mL450 \div 160 \times 5 = 14\text{ mL}), administering an oral medication is unsafe.
Giving oral fluids or medications to a actively bleeding post-tonsillectomy client increases aspiration risk and violates NPO status needed for potential surgical re-intervention.
3
Determine the appropriate action within the PN scope of practice.
The PN must refuse the unsafe delegation, withhold the medication, and escalate the critical findings to the RN.
The PN is responsible for recognizing life-threatening changes in a client's condition, withholding contraindicated medications, and communicating immediately with the RN or provider.

Key Concept

Pre-administration withholding criteria and recognizing subtle signs of postoperative hemorrhage.
Question 606Question →

A client is receiving a continuous intravenous (IV) heparin infusion for the treatment of a deep vein thrombosis. The practical nurse is reviewing the client's clinical data. Which finding is the priority to report to the registered nurse (RN) immediately?

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Answer: A heart rate of 118 beats per minute and blood pressure of 92/58 mm Hg

Answer

The finding that requires immediate reporting is the elevated heart rate combined with low blood pressure.
Tachycardia (heart rate of 118 beats per minute) and hypotension (blood pressure of 92/58 mm Hg) are classic early physiological signs of hypovolemia or shock. In a client receiving a continuous heparin infusion, these vital signs strongly suggest active internal hemorrhage. The practical nurse must immediately report these findings to the RN for rapid intervention, as bleeding is the most significant and potentially life-threatening adverse effect of anticoagulant therapy.

Step-by-Step Solution

1
Analyze the client's current treatment and associated physiological risks.
The client is on a continuous heparin infusion, which carries a high risk for bleeding complications, including concealed internal hemorrhage.
Identifying the primary risk factor helps prioritize assessment findings.
2
Evaluate the laboratory values provided in the clinical data.
The aPTT of 64 seconds is within the therapeutic target range for heparin. The platelet count of 190,000/mm³ is normal.
Normal or therapeutic laboratory results represent stable findings that do not require emergency escalation.
3
Evaluate the physiological measurements and vital signs.
The urine output is adequate at 40 mL/hr. However, the heart rate of 118 beats per minute and blood pressure of 92/58 mm Hg indicate a hypotensive and tachycardic state.
Adequate urine output indicates stable renal function, while abnormal vital signs point to a systemic issue.
4
Synthesize the findings to determine the priority nursing action.
The combination of tachycardia and hypotension in an anticoagulated client strongly suggests internal bleeding or hypovolemic shock, requiring immediate escalation to the RN.
Early recognition of shock signs is critical for client safety and risk reduction.

Key Concept

Monitoring for and identifying early signs of hemorrhage (such as tachycardia and hypotension) in clients receiving anticoagulant therapy is a critical component of risk reduction.
Estimated Time:1m 0s
Question 607Question →

Following a diagnostic lumbar puncture, a client is monitored in the outpatient observation area. The practical nurse is responsible for the client's immediate recovery care. Which positioning strategy should the nurse implement?

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Answer: Keep the client flat in a supine position.

Answer

Keep the client flat in a supine position.
After a lumbar puncture, the client must remain flat (usually supine) for a period prescribed by the provider (often 4 to 8 hours). This specific positioning strategy minimizes tension and hydrostatic pressure on the dural puncture, preventing cerebrospinal fluid (CSF) from leaking out. CSF leakage leads to decreased intracranial volume, resulting in a severe, throbbing spinal headache.

Step-by-Step Solution

1
Identify the nature of the procedure.
A lumbar puncture involves inserting a needle into the subarachnoid space to withdraw cerebrospinal fluid (CSF).
Understanding the anatomical disruption helps predict potential post-procedure complications.
2
Determine the most common complication.
The most frequent complication is a spinal headache caused by the continued leakage of CSF from the dural puncture site.
Nursing interventions must prioritize the prevention of this specific adverse event.
3
Select the appropriate intervention to mitigate the risk.
Positioning the client flat (supine) minimizes gravity-induced hydrostatic pressure on the puncture site, allowing the dura to seal and preventing CSF loss.
Proper mechanical positioning is a direct and effective basic care measure within the practical nurse's scope.

Key Concept

Post-Procedure Comfort and Positioning
Question 608Question →

A client receiving continuous enteral nutrition via a nasogastric tube suddenly experiences a severe bout of coughing accompanied by tachypnea and audible airway gurgling. To effectively reduce the risk of aspiration pneumonia and stabilize the client, arrange the following nursing actions in the correct priority sequence.

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Answer

The correct sequence prioritizes immediate risk mitigation by stopping the pump and protecting the airway with positioning, followed by gathering assessment data, escalating to the registered nurse, and finally documenting the event.
This sequence adheres to the Airway, Breathing, Circulation (ABC) priority framework and the nursing process. Turning off the pump immediately removes the aspiration hazard. Positioning the client utilizes gravity to further protect the airway. Assessing vital signs provides essential objective data for the subsequent escalation to the registered nurse. Documentation finalizes the process once the client is stabilized and safe.

Step-by-Step Solution

1
Identify the immediate threat and turn off the enteral feeding pump.
The flow of enteral formula is halted.
Risk mitigation requires immediate cessation of the offending agent to prevent further aspiration.
2
Position the client upright in a high Fowler's position or on their side.
The airway is protected using gravity.
This prevents pooling of fluids in the pharynx and maximizes lung expansion.
3
Assess vital signs, lung sounds, and oxygen saturation.
Objective data regarding the respiratory compromise is gathered.
Accurate assessment dictates the urgency and type of further medical interventions required.
4
Report the clinical findings to the supervising registered nurse.
The healthcare team is alerted to the acute change in condition.
The practical nurse must escalate critical findings that require advanced orders, such as suctioning or imaging.
5
Document the event and all nursing actions taken.
A permanent legal record of the emergency is created.
Documentation finalizes the nursing process only after the client has been safely stabilized.

Key Concept

Airway protection and prioritization of risk mitigation during a suspected aspiration event.
Question 609Question →

During morning rounds, the practical nurse is assisting a client who recently had a right total hip replacement via a posterior approach. The client requires help with bathing and changing positions in bed. Which action should the nurse take to ensure safe positioning and comfort?

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Answer: Maintain an abduction wedge between the lower extremities when turning the client.

Answer

The nurse should maintain an abduction wedge between the lower extremities when turning the client to prevent adduction and potential hip dislocation.
Following a total hip arthroplasty with a posterior approach, it is critical to prevent adduction (crossing the legs across the body's midline) and hyperflexion of the affected hip to avoid dislocating the new prosthesis. Using an abduction wedge or placing pillows between the legs keeps the hips properly aligned in slight abduction when the client is resting or being turned, ensuring joint safety and comfort.

Step-by-Step Solution

1
Identify the surgical procedure and its specific postoperative precautions.
The client had a right total hip replacement via a posterior approach.
Different surgical approaches have different mobility restrictions to prevent prosthesis dislocation.
2
Recall the positioning restrictions for a posterior approach hip replacement.
Restrictions include avoiding hip flexion greater than 90 degrees, avoiding hip adduction (crossing the midline), and avoiding internal rotation.
These movements place stress on the posterior joint capsule and can pop the femoral head out of the acetabulum.
3
Evaluate the nursing actions against these restrictions.
Using an abduction wedge prevents adduction. The other actions promote extreme flexion or adduction.
Basic care must incorporate these safety parameters to prevent severe complications while promoting hygiene and comfort.

Key Concept

Postoperative Positioning and Precautions
Question 610Question →

A practical nurse (PN) is assigned to a 28-year-old client who is 12 weeks pregnant and visiting the clinic for a routine prenatal check-up. The healthcare provider has prescribed a new daily dose of oral labetalol for gestational hypertension and ordered the live-attenuated intranasal influenza vaccine (LAIV). The registered nurse (RN) delegates the initial medication teaching for the labetalol to the PN and asks the PN to administer the vaccine. Which of the following actions is the most appropriate for the PN to take?

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Answer: Decline the delegation to perform the initial teaching for labetalol, and alert the RN that the live-attenuated influenza vaccine is contraindicated for this pregnant client.

Answer

The most appropriate action is to decline the delegation to perform the initial teaching for labetalol and alert the RN that the live-attenuated influenza vaccine is contraindicated for the pregnant client.
The safest and most legally sound approach requires the practical nurse (PN) to recognize two distinct issues. First, providing initial medication education requires a comprehensive assessment of the client's learning needs, which falls strictly within the registered nurse (RN) scope of practice; the PN may only reinforce teaching previously initiated by the RN. Second, live-attenuated vaccines, such as the intranasal influenza vaccine, are strictly contraindicated during pregnancy due to the theoretical risk of transmitting the live virus to the developing fetus. Therefore, the PN must decline the inappropriate delegation and escalate the contraindicated order.

Step-by-Step Solution

1
Evaluate the delegation of initial medication teaching for labetalol.
Initial education requires assessing the client's learning baseline and comprehension, which is exclusively an RN-level responsibility.
The PN scope of practice is legally limited to reinforcing education that has already been provided by the RN or provider.
2
Evaluate the prescription for the live-attenuated intranasal influenza vaccine (LAIV).
The client is 12 weeks pregnant.
Live-attenuated vaccines are strictly contraindicated during pregnancy because they pose a theoretical risk of transmitting the live virus to the developing fetus.
3
Determine the safest nursing action based on the findings.
The PN must decline the out-of-scope teaching task and inform the RN about the immunization contraindication.
Practicing within legal boundaries and actively advocating for client safety are fundamental nursing responsibilities.

Key Concept

LPN/VN Scope of Practice and Immunization Contraindications
Estimated Time:1m 30s
Question 611Question →

A practical nurse (PN) is preparing a single syringe containing both NPH insulin and regular insulin for a client with diabetes mellitus. In what order should the PN perform the following steps to safely prepare the medication? (Arrange the actions from first to last).

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Answer

The correct sequence is: roll the NPH vial, inject air into the NPH vial, inject air into the regular insulin vial, withdraw the regular insulin, and finally withdraw the NPH insulin.
When mixing NPH (intermediate-acting, cloudy) and regular (short-acting, clear) insulins, the standard safety protocol is 'clear before cloudy'. The correct sequence ensures the regular insulin vial is not contaminated by NPH insulin. First, the NPH suspension must be rolled to mix. Then, air is injected into the NPH vial, followed by air into the regular vial. The regular insulin is then withdrawn, and finally, the NPH insulin is withdrawn.

Step-by-Step Solution

1
Roll the NPH insulin vial gently between the palms of the hands.
The suspension is evenly mixed without creating bubbles.
NPH insulin contains particles that settle at the bottom and must be resuspended evenly for accurate dosing.
2
Inject an amount of air equal to the prescribed dose into the NPH insulin vial.
Air pressure in the NPH vial is increased without withdrawing medication.
Injecting air prevents a vacuum from forming when withdrawing the dose later. This is done first to avoid cross-contamination once the needle has regular insulin on it.
3
Inject an amount of air equal to the prescribed dose into the regular insulin vial.
Air pressure in the regular insulin vial is increased.
This prepares the regular insulin vial for immediate withdrawal of the medication.
4
Invert the regular insulin vial and withdraw the prescribed dose.
The correct dose of regular insulin is now in the syringe.
Regular (clear) insulin is always drawn up before NPH (cloudy) insulin to prevent the NPH insulin from contaminating the regular insulin vial, which could alter the action of the rapid-acting insulin.
5
Insert the needle into the NPH insulin vial and withdraw the prescribed dose.
The total mixed dose is now in the syringe.
The cloudy insulin is drawn up last to complete the mixture safely.

Key Concept

Safe Preparation of Mixed Insulins
Question 612Question →

A practical nurse is collecting data on a client who is 3 hours postoperative following abdominal surgery. Which of the following assessment findings should the nurse immediately report to the registered nurse as a potential early indicator of internal bleeding?

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Answer: Heart rate increasing from 76 to 112 beats/min

Answer

Heart rate increasing from 76 to 112 beats/min
In the early stages of internal bleeding (hypovolemic shock), the body's primary compensatory mechanism is to increase the heart rate to maintain cardiac output and adequate tissue perfusion. A sudden or steady increase in heart rate (tachycardia) is often the first vital sign change indicating fluid volume loss and must be reported immediately to prevent further deterioration.

Step-by-Step Solution

1
Identify the complication being asked about in the scenario.
The question asks for an early indicator of internal bleeding, which leads to hypovolemic shock.
Understanding the specific complication helps filter out normal, expected postoperative findings.
2
Recall the physiological response to internal blood loss.
The body compensates for reduced blood volume by increasing the heart rate (tachycardia) to maintain blood flow and oxygen delivery to tissues.
Tachycardia is often the very first measurable vital sign change in early shock.
3
Evaluate the given assessment findings against this physiological response.
An increasing heart rate to 112 beats/min indicates tachycardia. The other findings (mild fever, moderate pain, increased blood pressure) represent expected surgical responses or contradict the signs of shock.
This confirms that the elevated heart rate is the critical finding to report.

Key Concept

Early Signs of Hypovolemic Shock
Question 613Question →

An electronic health record displays the following sequential data for a client recovering from a percutaneous renal biopsy:

TimeBlood PressureHeart Rate
1300148/82 mm Hg76/min
1400132/74 mm Hg88/min
1500112/68 mm Hg108/min

At 1500, a point-of-care hemoglobin is reported as 8.4 g/dL (84 g/L). The client currently complains of new, dull flank pain on the operative side. Which action is the priority for the practical nurse?

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Answer: Escalate the clinical findings to the supervising registered nurse immediately

Answer

Escalate the clinical findings to the supervising registered nurse immediately
The vital sign trends demonstrate a narrowing pulse pressure, steadily decreasing systolic blood pressure, and increasing tachycardia, which are classic signs of compensatory shock. Combined with the low hemoglobin and new flank pain following a renal biopsy, these findings strongly indicate active retroperitoneal hemorrhage. As a practical nurse, the priority action is to immediately escalate these critical findings to the registered nurse for rapid collaborative intervention.

Step-by-Step Solution

1
Analyze the vital sign trends over the two-hour period.
The blood pressure is steadily dropping (from 148/82 to 112/68) while the heart rate is rising (from 76 to 108).
These are classic compensatory signs of decreasing circulating blood volume.
2
Evaluate the laboratory value and the reported client symptom in the context of the recent procedure.
The hemoglobin is critically low (8.4 g/dL) and the client has new flank pain following a renal biopsy.
The kidneys are highly vascular; flank pain combined with these vital signs strongly indicates active retroperitoneal bleeding.
3
Determine the priority intervention based on the practical nursing scope of practice.
Immediate escalation is required.
The client is entering hypovolemic shock, a life-threatening emergency that requires registered nurse assessment, rapid provider notification, and advanced interventions.

Key Concept

Recognizing post-procedure hemorrhagic shock and appropriate clinical escalation within the practical nursing scope of practice
Question 614Question →

A pediatric client weighing 44 lb44\text{ lb} is prescribed amoxicillin 45 mg/kg/day45\text{ mg/kg/day} by mouth, to be administered in equally divided doses every 12 hours. The pharmacy supplies amoxicillin oral suspension with a concentration of 250 mg/5 mL250\text{ mg}/5\text{ mL}. How many mL should the practical nurse administer per dose?

(Record the answer as a whole number. Do not include units in your answer.)

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Answer: 9

Answer

9
To determine the correct volume, first convert the weight to kilograms (44÷2.2=20 kg44 \div 2.2 = 20\text{ kg}). Next, find the total daily dose (20 kg×45 mg/kg/day=900 mg/day20\text{ kg} \times 45\text{ mg/kg/day} = 900\text{ mg/day}). Since it is given every 12 hours, divide by 2 to find the single dose (450 mg/dose450\text{ mg/dose}). Finally, use the desired over have formula: (450 mg/250 mg)×5 mL=9 mL(450\text{ mg} / 250\text{ mg}) \times 5\text{ mL} = 9\text{ mL}.

Step-by-Step Solution

1
Convert the client's weight from pounds to kilograms.
44 lb÷2.2=20 kg44\text{ lb} \div 2.2 = 20\text{ kg}
Medication is prescribed based on the client's weight in kilograms.
2
Calculate the total daily dose of amoxicillin.
20 kg×45 mg/kg/day=900 mg/day20\text{ kg} \times 45\text{ mg/kg/day} = 900\text{ mg/day}
This establishes the total amount of medication required for a 24-hour period.
3
Calculate the individual dose amount in milligrams.
900 mg÷2=450 mg/dose900\text{ mg} \div 2 = 450\text{ mg/dose}
The medication is ordered every 12 hours, which equates to 2 equal doses per day.
4
Calculate the liquid volume to administer per dose.
450 mg250 mg×5 mL=9 mL\frac{450\text{ mg}}{250\text{ mg}} \times 5\text{ mL} = 9\text{ mL}
This converts the required dose in mg into the physical volume of the supplied suspension.

Key Concept

Weight-based pediatric dosage calculation and liquid medication volume determination.
Question 615Question →

An older adult client is recovering in the outpatient surgical unit following an uncomplicated right eye cataract extraction. The client reports feeling exhausted and asks the licensed practical nurse for help getting comfortable to sleep. Which action should the nurse take to safely promote the client's rest?

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Answer: Elevate the head of the bed to 30 degrees and position the client supine or resting on the left side

Answer

The correct action is to elevate the head of the bed to 30 degrees and position the client supine or on the non-operative (left) side.
Following cataract surgery, maintaining a semi-Fowler's position (head elevated 30 to 45 degrees) and resting on the non-operative side or back is essential. This utilizes gravity to decrease venous congestion in the head, keeping intraocular pressure (IOP) low while preventing direct physical pressure on the surgical site.

Step-by-Step Solution

1
Identify the primary clinical risk for a client immediately following a cataract extraction.
The primary risk is an increase in intraocular pressure (IOP), which can compromise the surgical repair.
Understanding the anatomical risks directs the appropriate comfort and positioning measures.
2
Evaluate the physiological impact of head elevation on intraocular pressure.
Elevating the head of the bed utilizes gravity to promote venous drainage from the head, thereby reducing IOP.
Positions that increase cerebral blood flow, such as lying flat or bending forward, will increase IOP and are contraindicated.
3
Determine the safest body alignment and side-lying position for the client.
The client should be positioned either supine or on the non-operative (left) side.
Lying on the operative (right) side places direct pressure on the surgical eye, which increases IOP and risks mechanical injury to the incision.

Key Concept

Postoperative Positioning for Cataract Extraction
Question 616Question →

A practical nurse (PN) is in the room with a client who has a continuous intravenous infusion via a central venous catheter. The client suddenly gasps for air, becomes profoundly cyanotic, and reports acute, severe chest pain. Suspecting a central line air embolism, arrange the following nursing actions in the precise priority order the PN should perform them to mitigate the immediate risk of a fatal complication.

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Answer

The correct sequence is to first clamp the catheter, then place the client in a left lateral Trendelenburg position, followed by administering high-flow oxygen, notifying the RN and rapid response team, and finally obtaining a complete set of vital signs.
In a suspected central line air embolism, the sequence of actions must prioritize immediate source containment and physiological mitigation before escalating the situation. Clamping the line instantly stops the cause. The left lateral Trendelenburg position (Durant's maneuver) is the definitive mechanical intervention to trap the air in the right ventricle, preventing a fatal pulmonary embolism. High-flow oxygen helps wash out nitrogen to shrink the embolus. Only after these rapid, life-saving measures are executed should the practical nurse take the time to escalate the emergency to the RN and Rapid Response Team, followed by continuous vital sign monitoring to prepare for their arrival.

Step-by-Step Solution

1
Clamp the central venous catheter immediately.
The source of the air embolus is instantly secured.
This is the most critical first step; it stops the ongoing influx of air into the central circulation, preventing the complication from worsening.
2
Place the client in a left lateral Trendelenburg position.
The air bubble is mechanically trapped.
Known as Durant's maneuver, this position keeps the buoyant air in the apex of the right ventricle, preventing it from migrating into the pulmonary circulation where it could cause sudden cardiac arrest.
3
Administer high-flow oxygen via a non-rebreather mask.
Hypoxia is treated and the bubble size may decrease.
Delivering 100% oxygen washes out nitrogen from the air bubble, helping to reduce its volume while aggressively treating the client's profound tissue hypoxia.
4
Notify the supervising registered nurse (RN) and the rapid response team.
Advanced medical support is initiated.
The client requires critical care interventions beyond the practical nursing scope. Escalation must occur immediately after the initial, scope-appropriate physical life-saving measures are secured.
5
Obtain a complete set of vital signs while remaining with the client.
Hemodynamic status is quantified.
Provides essential baseline data for the arriving rapid response team and helps monitor the client for impending cardiogenic shock.

Key Concept

Emergency management and prioritization of a central line air embolism
Question 617Question →

A client who experienced a recent cerebrovascular accident has unilateral weakness. The nurse is assisting the client out of bed into a wheelchair for the first time. In which order should the nurse execute the following steps to safely perform a stand-and-pivot transfer? Arrange the actions from first to last.

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Answer

The correct sequence ensures safety by preparing the environment, securing the client, and executing the pivot on the client's strong side.
Following this precise chronological sequence minimizes the risk of falls and injury. The nurse must first establish environmental safety (positioning the chair on the strong side and locking wheels) before physically moving the client. Once the environment is secure, the nurse assists the client to sit, applies a safety device (transfer belt), and provides physical support (bracing the weak knee) before finally initiating the pivot maneuver.

Step-by-Step Solution

1
Position the wheelchair at a 45-degree angle on the client's unaffected side.
The destination equipment is properly positioned.
Setting up the environment first ensures the client can pivot toward their strong side with the shortest possible transfer distance.
2
Engage the wheel locks on both the bed and the wheelchair.
The bed and wheelchair are completely immobilized.
Immobilizing the equipment is a mandatory safety check to prevent the chair or bed from sliding away during the weight transfer.
3
Assist the client to sit on the edge of the bed and secure a transfer belt around their waist.
The client is sitting upright and equipped with a safety device.
Dangling allows the nurse to assess the client for orthostatic hypotension and dizziness, while the belt provides a secure hold for lifting.
4
Stand facing the client, grasp the transfer belt, and brace the client's weakened knee with your own knee.
Physical support and leverage are established.
Bracing the affected knee prevents it from buckling under the client's weight during the standing phase of the transfer.
5
Instruct the client to bear weight on the strong leg while pivoting to reach back for the wheelchair armrests.
The client safely transitions from a standing position into the wheelchair.
Reaching back provides a physical target and helps the client control their descent into the chair without falling.

Key Concept

Safe stand-and-pivot transfers for clients with unilateral weakness
Question 618Question →

A practical nurse (PN) is preparing to administer scheduled oral digoxin to an adult client diagnosed with heart failure. Which of the following actions should the PN take to ensure safe medication administration? (Select all that apply.)

Select all that apply

Show answer & explanation

Answer: Auscultate the client's apical pulse for a full 6060 seconds before giving the medication.; Verify the client's identity by checking two distinct identifiers against the medication administration record.; Withhold the dose and notify the registered nurse if the client's morning serum potassium level is 2.92.9 mEq/L.

Answer

The appropriate actions are: auscultating the apical pulse for a full 60 seconds, verifying the client's identity using two distinct identifiers, and withholding the dose while reporting a critically low potassium level.
Safe administration of digoxin requires comprehensive monitoring and strict adherence to established protocols. Auscultating the apical pulse for one full minute is necessary because digoxin slows the heart rate. Verifying two distinct patient identifiers ensures the right client receives the medication, maintaining a fundamental medication right. Additionally, hypokalemia (such as a potassium level of 2.9 mEq/L) significantly increases the risk of digoxin toxicity, meaning the practical nurse must withhold the medication and immediately escalate this critical laboratory value to the registered nurse.

Step-by-Step Solution

1
Identify the medication class and primary nursing considerations for digoxin.
Digoxin is a cardiac glycoside that requires strict heart rate monitoring and is highly sensitive to electrolyte imbalances.
Understanding the drug profile dictates the necessary pre-administration clinical assessments.
2
Evaluate the client's vital sign monitoring requirements.
An apical pulse must be auscultated for 60 seconds; the medication should typically be withheld if the heart rate is less than 60 beats per minute.
Digoxin slows the heart rate and can cause severe bradycardia, making accurate pulse measurement critical.
3
Assess laboratory values relevant to digoxin therapy.
A potassium level of 2.9 mEq/L indicates hypokalemia, which must be immediately reported because it significantly increases the risk of digoxin toxicity.
Electrolyte imbalances directly impact the safety of administering this specific medication.
4
Apply the practical nurse scope of practice and general medication safety rules to the remaining choices.
IV push administration is outside the practical nurse scope, and barcode scanning with dual identifiers is mandatory for all patients in all circumstances.
Ensuring legal and institutional safety compliance prevents life-threatening administration errors.

Key Concept

Safe digoxin administration, hypokalemia implications, and practical nurse scope of practice
Question 619Question →

A practical nurse is providing care for a client who is 48 hours postoperative following a right above-the-knee amputation. To help prevent a hip flexion contracture, which of the following positioning interventions should the nurse implement?

Show answer & explanation

Answer: Assist the client to a prone position for 20 to 30 minutes every 3 to 4 hours.

Answer

Assist the client to a prone position for 20 to 30 minutes every 3 to 4 hours.
Placing a client with an above-the-knee amputation in a prone position for 20 to 30 minutes multiple times a day actively stretches the flexor muscles and extends the hip joint. This targeted positioning is essential to prevent hip flexion contractures, which can severely limit future mobility and make prosthetic fitting impossible.

Step-by-Step Solution

1
Identify the primary complication risk specific to the postoperative time frame and surgical site.
The client is at high risk for a hip flexion contracture following an above-the-knee amputation.
Without proper positioning, the hip joint naturally rests in a flexed position, which can permanently impair mobility and prevent future use of a prosthetic limb.
2
Evaluate the anatomical effect of each positioning option.
Pillows, high Fowler's, and drawing knees to the chest all promote hip flexion. The prone position promotes hip extension.
Extending the hip counteracts the natural tendency for the joint to flex and stiffen.
3
Select the intervention that actively extends the hip joint.
The prone position for short intervals is identified as the correct nursing action.
This directly aligns with evidence-based basic care principles for amputation recovery after the initial 24 hours.

Key Concept

Postoperative Positioning for Amputation
Question 620Question →

A practical nurse (PN) is preparing to transfer a client from the bed to a bedside chair for the first time following abdominal surgery. To ensure client safety and comfort, in what order should the PN perform the following actions? (Arrange the steps in the correct chronological sequence.)

Drag items to arrange them in the correct order

Show answer & explanation

Answer

The nurse must first raise the head of the bed, assist the client to sit on the edge, allow them to dangle while assessing for dizziness, apply a transfer belt, and finally assist them to stand and pivot into the chair.
Safe mobility for a post-operative client requires a deliberate, step-by-step approach to prevent orthostatic hypotension and protect the surgical site. The head of the bed is elevated first to initiate cardiovascular adjustment and ease movement. After pivoting to the edge of the bed, the client must dangle to ensure they are not experiencing dizziness. Only after stability is confirmed is a transfer belt applied to provide physical support. Finally, the nurse assists the client to stand and pivot into the chair.

Step-by-Step Solution

1
Raise the head of the bed to a high-Fowler's position.
The client is transitioned from a supine to an upright seated position in bed.
This gradually introduces orthostatic changes and minimizes physical strain on the abdominal surgical site when moving.
2
Assist the client to pivot and sit on the edge of the bed.
The client is positioned at the edge of the mattress with their feet toward the floor.
This is a prerequisite physical maneuver before weight-bearing and standing.
3
Allow the client to dangle their legs while assessing for dizziness.
The client rests in a seated position while the nurse evaluates their physiological tolerance.
Post-operative clients are at high risk for orthostatic hypotension. Dangling prevents syncope and potential falls.
4
Apply a transfer belt securely around the client's waist.
The nurse establishes a safe, mechanical gripping point on the client.
Applying the belt while the client is sitting ensures it is snug and ready for the standing transfer without compromising the client's balance.
5
Assist the client to stand, pivot, and sit in the bedside chair.
The client is safely relocated from the bed to the chair.
This finalizes the transfer using safe body mechanics and physical support.

Key Concept

Safe Post-Operative Client Transfer and Positioning
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