Tüm alıştırma soruları

A 29-week gestation female neonate develops grunting, nasal flaring, and intercostal retractions shortly after birth. She is diagnosed with Neonatal Respiratory Distress Syndrome (RDS). Arrange the following pathophysiologic events in the correct chronological sequence that ultimately leads to the classic histopathologic findings of this condition.

Emergency medical services transport a 15-month-old girl to the emergency department following a sudden episode of severe choking and coughing. The babysitter reports the child was playing near a coffee table with a bowl of mixed nuts when the event occurred. The acute coughing fit has now subsided. Her vital signs show a temperature of 37.0°C (98.6°F), a heart rate of 128/min, a respiratory rate of 34/min, and an oxygen saturation of 97% on room air. Auscultation of the lungs reveals noticeably decreased air entry and a distinct expiratory wheeze localized to the right lower lung field. An expiratory chest radiograph displays hyperinflation of the right lung alongside a mild shift of the mediastinum toward the left. Which of the following is the most appropriate next step in the management of this patient?

Antipsychotic medications modulate dopamine activity across various neural circuits, leading to both therapeutic effects and distinct adverse reactions. Match each clinical presentation described below to the specific dopaminergic pathway whose dopamine D2 receptor blockade is most directly responsible for the observed outcome.

Parents bring their $6$-month-old daughter to the acute care clinic due to episodes of profound sweating, vomiting, and unresponsiveness. According to the parents, the infant was entirely asymptomatic during her first few months of life while being exclusively breastfed. However, following the introduction of fruit purees and apple juice three weeks ago, she began having these episodes shortly after feeding. Vital signs include a heart rate of $152$/min and a respiratory rate of $42$/min. Physical examination demonstrates a pale, difficult-to-arouse infant with marked hepatomegaly.

Which of the following is the most likely underlying biochemical defect in this patient?

A father brings his 14-month-old daughter to the primary care clinic because she has been unusually irritable and consistently rubbing her ears for the past two days. She developed a clear nasal discharge and a mild cough earlier in the week. Her temperature in the clinic is 38.6°C (101.5°F), heart rate is 130/min, and respiratory rate is 28/min. She has not been exposed to any known sick contacts outside the home, does not attend daycare, and has no history of medication allergies. Her last course of antibiotics was prescribed at age 4 months for a localized skin infection. On physical examination, she appears fussy but consolable. Otoscopy reveals that both tympanic membranes are bulging, vividly erythematous, and lack mobility upon pneumatic insufflation. The lungs are clear to auscultation bilaterally. Which of the following is the most appropriate initial treatment for this patient?

A collegiate gymnast presents to the student health center for evaluation of a persistently depressed mood, profound fatigue, and anhedonia over the past three months. During the interview, she expresses deep dissatisfaction with her body shape and an intense fear of gaining weight. Vital signs show a heart rate of $54 \text{ /min}$ and a blood pressure of $92/58 \text{ mm Hg}$. Physical examination reveals a body mass index of $17.4 \text{ kg/m}^2$, fine downy hair on her arms, and bilateral parotid gland enlargement. Laboratory results are notable for a serum potassium of $3.2 \text{ mEq/L}$. She asks the physician to prescribe an antidepressant she read about online, describing it as 'the one that does not cause weight gain or sexual problems.' If the physician complies and prescribes this specific medication, the patient would be at significantly increased risk for which of the following complications?

A $72$-year-old woman is brought to the emergency department by her daughter due to a $3$-day history of progressively worsening shortness of breath. The patient reports that she has been unable to sleep in her bed for the past two nights, opting to sleep in a recliner chair instead. Her medical history is significant for hypertension, type 2 diabetes mellitus, and a $45$-pack-year smoking history. She was diagnosed with chronic obstructive pulmonary disease (COPD) five years ago. Current medications include amlodipine, metformin, and an albuterol inhaler as needed. Her temperature is $37.0^\circ\text{C}$ ($98.6^\circ\text{F}$), blood pressure is $168/94\text{ mmHg}$, heart rate is $115/\text{min}$, respiratory rate is $26/\text{min}$, and oxygen saturation is $85\%$ on room air. She appears in respiratory distress and is using accessory muscles of respiration. Jugular venous pressure is estimated at $12\text{ cm H}_2\text{O}$. Lung auscultation reveals bilateral basilar dullness to percussion, diffuse fine crackles extending to the mid-lung fields, and scattered expiratory wheezes. Cardiac examination shows a regular rhythm, tachycardia, and a prominent $S_3$ gallop. There is $3+$ pitting edema of the bilateral lower extremities extending to the mid-calves. Which of the following is the most appropriate next step in management for this patient?

A $32$-year-old nulliparous woman comes to the office due to a $10$-month history of amenorrhea and an inability to conceive. She and her partner have been having regular, unprotected intercourse for $1.5$ years. Her previously regular $28$-day menstrual cycles became increasingly irregular two years ago and ceased entirely $10$ months ago. The patient reports a recent onset of daily headaches, worsening fatigue, a $5$-kg ($11$-lb) weight gain, and cold intolerance. Over the past few months, she has also noticed a bilateral, non-bloody, milky nipple discharge. She takes no medications. Vital signs are within normal limits. Physical examination reveals delayed relaxation of deep tendon reflexes and bilateral bitemporal hemianopsia on visual field testing.

Laboratory results:
Serum $\beta$-hCG: Negative
Prolactin: $65$ ng/mL (Normal: $4$ - $23$ ng/mL)
Thyroid-stimulating hormone (TSH): $0.2$ $\mu$ U/mL (Normal: $0.4$ - $4.0$ $\mu$ U/mL)
Free T4: $0.5$ ng/dL (Normal: $0.9$ - $1.7$ ng/dL)
Follicle-stimulating hormone (FSH): $2$ mIU/mL (Normal: $4$ - $30$ mIU/mL)
Luteinizing hormone (LH): $1.5$ mIU/mL (Normal: $4$ - $30$ mIU/mL)

Which of the following is the most likely mechanism underlying this patient's hyperprolactinemia?

Match each neonatal clinical presentation of hyperbilirubinemia to its most likely underlying etiology.

Match each classic pediatric respiratory clinical presentation (left) with its most likely causative microbiologic agent (right).

Below are four distinct clinical scenarios involving peripheral vascular compromise. Pair each patient presentation with its most characteristic diagnostic finding.

A 41-year-old G3P3 woman comes to the urogynecology clinic complaining of involuntary urine leakage for the past year. The leakage occurs almost exclusively when she plays tennis, coughs, or sneezes. She has no pain with urination, no sudden urges to void, and no nocturia. She has been performing pelvic floor muscle exercises with a specialized physical therapist for the last 6 months but has seen minimal improvement. The patient is frustrated and requests a definitive surgical solution. She has regular menstrual cycles, and her past medical history is unremarkable. On pelvic examination, the vaginal mucosa is pink and well-rugated. With a full bladder, a cough stress test demonstrates immediate, synchronous leakage of urine from the urethral meatus. A cotton swab test reveals a resting angle of $10^\circ$ that increases to $45^\circ$ with Valsalva maneuver. There is no evidence of pelvic organ prolapse. Urinalysis is negative for nitrites and leukocyte esterase. Post-void residual volume is $25$ mL. Which of the following is the most appropriate next step in management for this patient?

During morning rounds, a physician evaluates a 54-year-old female recovering on the surgical unit. It is her seventh day recovering from an open myomectomy for large symptomatic uterine leiomyomas. For the past 48 hours, she has been unable to pass flatus or stool and has experienced progressive, crampy abdominal pain. This morning, she had two episodes of dark green, bilious emesis. Vital signs reveal a temperature of $38.7^{\circ}\text{C}$ ($101.7^{\circ}\text{F}$), heart rate of $122/\text{min}$, respiratory rate of $20/\text{min}$, and blood pressure of $94/60\text{ mmHg}$. On physical examination, the abdomen is markedly distended. Auscultation reveals high-pitched, hyperactive bowel sounds. Palpation demonstrates significant guarding and rebound tenderness in all four quadrants. Laboratory evaluation shows a leukocyte count of $18,500/\text{mm}^3$ and a serum lactate level of $4.2\text{ mmol/L}$ (normal: $0.5$-$1.0\text{ mmol/L}$). Which of the following is the most appropriate next step in management?

A 24-hour-old term male neonate is evaluated in the nursery for rapidly progressing jaundice. He was born via uncomplicated vaginal delivery at 39 weeks gestation to a mother with blood type O, Rh-positive. His birth weight was $3400\text{ g}$. APGAR scores were 8 and 9 at 1 and 5 minutes, respectively. The infant's blood type is A, Rh-positive, and his direct antiglobulin test (DAT) is strongly positive. He is currently vigorous and feeding well with breast milk. His temperature is $37.0^\circ\text{C}$ ($98.6^\circ\text{F}$), heart rate is $145\text{/min}$, and respiratory rate is $42\text{/min}$. Arrange the following interventions in the most appropriate escalating sequence for the management of this patient's condition, assuming continued clinical deterioration and refractoriness to each preceding therapy.

A healthy 41-year-old female arrives at the surgical assessment unit complaining of steady pain under her right rib cage that began shortly after eating a heavy meal. Examination reveals localized tenderness and inspiratory arrest upon deep palpation in the right upper quadrant. Her temperature is 38.2°C (100.8°F) and vital signs are otherwise stable. Arrange the following interventions in the most appropriate chronological sequence for her standard evaluation and definitive care.

A 58-year-old man is brought to the emergency department by ambulance due to the sudden onset of severe, tearing chest pain that radiates to his back. His blood pressure is 210/115 mmHg in the right arm and 170/90 mmHg in the left arm. His pulse is 112/min. Physical examination reveals a new diastolic decrescendo murmur at the right sternal border. An electrocardiogram shows sinus tachycardia with no ischemic changes, and a chest x-ray reveals a widened mediastinum. Arrange the following management steps in the most appropriate chronological sequence for this patient.

A 52-year-old male patient is transported to the emergency department by ambulance following the sudden onset of unrelenting abdominal pain 6 hours ago. He has had multiple episodes of bilious vomiting and is now unable to tolerate oral intake. His medical history is significant for a laparoscopic Roux-en-Y gastric bypass performed 4 years ago, which was complicated by a marginal ulcer that was successfully treated with proton pump inhibitors. His temperature is 38.6°C (101.5°F), pulse is 128/min, respirations are 24/min, and blood pressure is 82/50 mm Hg. Physical examination reveals an ill-appearing, diaphoretic man lying completely still on the stretcher. His abdomen is distended, rigid, and exhibits diffuse rebound tenderness and guarding. Bowel sounds are absent. Intravenous fluid resuscitation is initiated. Which of the following is the most appropriate next step in management?

An ambulance brings a $32$-year-old woman to the emergency department due to severe agitation, palpitations, and confusion. She has a history of Graves disease but reports stopping her medications $3$ months ago. Her temperature is $39.6^{\circ}\text{C}$ ($103.3^{\circ}\text{F}$), blood pressure is $150/70\text{ mmHg}$, and heart rate is $148\text{/min}$ and irregular. Physical examination reveals a diffuse goiter, bilateral proptosis, diaphoresis, and a fine resting tremor. An electrocardiogram shows atrial fibrillation with a rapid ventricular response. A clinical diagnosis of thyroid storm is established.

Arrange the following management steps in the most appropriate chronological sequence for this patient.

Evaluate the following distinct patient scenarios detailing upcoming international travel plans and occupational exposures. Match each patient's clinical and travel profile with the most critical, specific immunization indicated for their itinerary according to current CDC/ACIP guidelines.

An internal medicine team is caring for a 69-year-old female admitted for acute pyelonephritis. On her second day of hospitalization, she experiences a drop in blood pressure to $85/50\text{ mm Hg}$ along with tachycardia of $115/\text{min}$. The electronic health record (EHR) generates a "sepsis warning" pop-up. The on-call resident rapidly closes the pop-up without reviewing it because this particular warning has appeared over thirty times during their shift for clinically stable patients. Consequently, intravenous fluid resuscitation and broad-spectrum antibiotics are delayed by four hours. The patient requires a transfer to the intensive care unit for vasopressor support but ultimately recovers. The hospital's patient safety officer is tasked with addressing this incident. Which of the following proposed solutions represents the most effective quality improvement strategy to prevent a similar event?