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A 56-year-old man is brought to the emergency department via ambulance due to vomiting large amounts of bright red blood. He has a history of alcohol-associated cirrhosis. En route to the hospital, he had two more episodes of massive hematemesis. On arrival, he is somnolent, groans to painful stimuli, and is unable to follow commands. His temperature is 36.5°C (97.7°F), blood pressure is 78/45 mmHg, heart rate is 132/min, and respiratory rate is 24/min. Pulse oximetry is 92% on room air. Physical examination is notable for jaundice, spider angiomas on the chest, and a distended abdomen with shifting dullness.

Arrange the following interventions in the most appropriate sequential order for the acute management of this patient's condition.

A $54$-year-old male with known decompensated cirrhosis is brought to the emergency room after experiencing two episodes of large-volume, bright red hematemesis at home. Upon arrival, he is pale and lethargic but is able to converse and is protecting his airway. Vital signs reveal a blood pressure of $88/56$ mm Hg, heart rate of $118$/min, respiratory rate of $18$/min, and oxygen saturation of $96\%$ on ambient air. Physical examination demonstrates scleral icterus, caput medusae, and shifting dullness. Arrange the following interventions in the most appropriate sequential order for the acute management of this patient.

A 64-year-old man presents to the emergency department with a 4-day history of worsening left lower quadrant abdominal pain, fever, and chills. His temperature is 38.6°C (101.5°F), blood pressure is 128/82 mmHg, and pulse is 98/min. Physical examination demonstrates a tender, palpable mass in the left lower quadrant. There is no diffuse rigidity or rebound tenderness. Laboratory tests show a leukocyte count of $17,500/\text{mm}^3$. Arrange the following management steps in the most appropriate chronological sequence for this patient's condition.

A 32-year-old woman presents to the emergency department complaining of sudden-onset, rapid heart palpitations and mild chest fullness that began 30 minutes ago while sitting at her desk. She denies syncope, severe shortness of breath, or chest pain. Her blood pressure is 115/75 mm Hg, pulse is 185/min, and respiratory rate is 16/min. Physical examination reveals regular, rapid heart sounds with no murmurs. An electrocardiogram demonstrates a regular, narrow-complex tachycardia with no discernible P waves.

Arrange the following interventions in the most appropriate sequential order for managing this patient's arrhythmia, assuming each preceding step fails to restore sinus rhythm.

A $22$-year-old man with a history of type 1 diabetes mellitus is brought to the emergency department due to severe abdominal pain, nausea, vomiting, and increasing lethargy over the past $24$ hours. His vital signs show a temperature of $37.2^\circ\text{C}$ ($99.0^\circ\text{F}$), blood pressure of $90/60\text{ mm Hg}$, pulse of $122/\text{min}$, and respirations of $28/\text{min}$ with deep, sighing breaths. Physical examination reveals dry mucous membranes and poor skin turgor. Laboratory evaluation reveals the following:

Arrange the following management steps in the correct, priority-based chronological order for this patient.

A 54-year-old woman with a history of metastatic breast cancer is brought to the emergency department due to progressive, severe dyspnea and lightheadedness over the last 48 hours. She is diaphoretic and tachypneic. Vital signs show a temperature of 37.1°C (98.8°F), blood pressure of 82/52 mm Hg (which decreases to 68/46 mm Hg during inspiration), heart rate of 122/min, and respiratory rate of 26/min. Physical examination reveals jugular venous distention to the angle of the mandible while sitting at a 45-degree angle. Heart sounds are distant. Lungs are clear to auscultation bilaterally. Electrocardiography demonstrates sinus tachycardia with low QRS voltage and beat-to-beat variation in the QRS complex amplitude. Arrange the following management steps in the most appropriate chronological sequence for this patient's acute presentation.

A $42$-year-old man presents to a busy urgent care clinic with a $5$-week history of worsening cough producing blood-tinged sputum, drenching night sweats, and an $8$-kg ($17.6$-lb) weight loss. He immigrated to the United States from a highly endemic region $3$ years ago. His temperature is $38.3^\circ\text{C}$ ($100.9^\circ\text{F}$), blood pressure is $118/76\text{ mm Hg}$, pulse is $88\text{/min}$, and respiratory rate is $18\text{/min}$. He is currently seated in the crowded main waiting room.

Arrange the following steps in the most appropriate chronological order for the initial workup and management of this patient.

A 68-year-old male is evaluated on postoperative day 6 following an emergent exploratory laparotomy and bowel resection for perforated diverticulitis. He has a history of poorly controlled diabetes mellitus and chronic obstructive pulmonary disease. While coughing forcefully, he feels a sudden "giving way" sensation in his abdomen. The nurse reports a large amount of salmon-colored fluid draining from the surgical site. Physical examination reveals a separation of the midline fascial closure with a segment of small intestine protruding through the defect. His blood pressure is 130/80 mm Hg and pulse is 95/min. Arrange the following management steps in the most appropriate chronological sequence for this patient.

A 55-year-old man is brought to the emergency department via ambulance after coughing up approximately 400 mL of bright red blood over the past hour. He has a history of treated pulmonary tuberculosis with residual cavitary disease in the right upper lobe. On arrival, he is in moderate respiratory distress and actively coughing up blood. Temperature is 37.1°C (98.8°F), blood pressure is 110/70 mm Hg, pulse is 118/min, and respirations are 28/min. Pulse oximetry shows an oxygen saturation of 86% on room air. Pulmonary auscultation reveals coarse rhonchi and gurgling over the right lung fields, with clear breath sounds over the left lung.

Arrange the following steps in the most appropriate sequential order for the acute management of this patient's massive hemoptysis.

A 45-year-old man is evaluated in the gastroenterology clinic for a 6-month history of severe, burning epigastric pain and chronic, large-volume watery diarrhea. The pain frequently awakens him at night and has not improved despite taking a high-dose proton pump inhibitor (PPI) for the past 8 weeks. Upper endoscopy performed two weeks ago revealed thickened gastric folds and multiple deep ulcerations in the stomach, duodenal bulb, and descending duodenum. Gastric biopsies obtained during the procedure were negative for Helicobacter pylori. Vital signs are within normal limits, and routine laboratory studies show a normal comprehensive metabolic panel. The physician strongly suspects a neuroendocrine etiology for this patient's condition. Arrange the following diagnostic steps in the most appropriate chronological sequence for evaluating this patient's suspected condition.

A $65$-year-old man is brought to the emergency department due to the sudden onset of severe, tearing chest pain that radiates to his back. His temperature is $37.1^\circ\text{C}$ ($98.8^\circ\text{F}$), blood pressure is $210/120\text{ mmHg}$ in the right arm and $170/95\text{ mmHg}$ in the left arm, pulse is $112/\text{min}$, and respirations are $20/\text{min}$. Physical examination reveals a new diastolic decrescendo murmur at the right upper sternal border. A portable chest radiograph shows a widened mediastinum. Acute ascending aortic dissection is strongly suspected. Arrange the following steps in the most appropriate chronological sequence for the management of this patient.

A 62-year-old man presents to the clinic for a routine health maintenance examination and preoperative clearance for an upcoming elective inguinal hernia repair. He feels well and reports no cough, dyspnea, hemoptysis, weight loss, or chest pain. He has a 45-pack-year smoking history but quit 2 years ago. A routine preoperative chest radiograph reveals a newly identified $14\text{ mm}$ distinct, rounded opacity in the peripheral right upper lobe.

Assuming the clinical findings at each stage continue to indicate an intermediate-to-high clinical probability of malignancy, arrange the following diagnostic interventions in the most appropriate chronological sequence for evaluating this patient's pulmonary nodule.

A 34-year-old woman is brought to the emergency department by her husband due to severe agitation, confusion, and palpitations. She has a history of Graves disease but stopped taking her antithyroid medications three months ago. Her temperature is 39.4°C (103°F), blood pressure is 160/70 mmHg, and heart rate is 145/min and irregular. Physical examination reveals a staring gaze, a diffusely enlarged and non-tender thyroid gland, diaphoresis, and a fine tremor. An electrocardiogram shows atrial fibrillation with rapid ventricular response. A clinical diagnosis of thyroid storm is made. Arrange the following management steps in the correct chronological sequence for this patient, from immediate acute management to long-term definitive therapy.

A $54$-year-old man is brought to the emergency department by his partner due to a severe headache, subjective fever, and progressive lethargy over the past $24$ hours. His temperature is $39.4^\circ\text{C}$ ($102.9^\circ\text{F}$), blood pressure is $142/88$ mmHg, pulse is $112$/min, and respirations are $20$/min. Physical examination demonstrates marked resistance to passive neck flexion. Neurologic examination reveals somnolence, disorientation to place and time, and a pronounced right-sided pronator drift with right lower extremity weakness. Arrange the following interventions in the most appropriate sequential order for this patient's management.

A 68-year-old man is brought to the emergency department due to the sudden onset of crushing substernal chest pain, severe diaphoresis, and profound dizziness that began an hour ago. His past medical history includes hypertension, hyperlipidemia, and type 2 diabetes mellitus. His current blood pressure is 78/50 mm Hg, and his heart rate is 55/min. Respirations are 22/min, and oxygen saturation is 96% on room air. Physical examination reveals clear lungs bilaterally with no crackles or wheezes. The jugular veins are markedly distended. A standard 12-lead electrocardiogram demonstrates 3-mm ST-segment elevations in leads II, III, and aVF, along with reciprocal changes in leads I and aVL.

Arrange the following management steps in the most appropriate chronological sequence for the diagnostic evaluation, hemodynamic stabilization, and definitive treatment of this patient's condition.

A 77-year-old man is brought to the emergency department from a psychiatric group home with a 2-day history of worsening abdominal distension and an inability to pass flatus or stool. He has a medical history significant for schizophrenia and chronic severe constipation. His current medications include haloperidol, benztropine, and daily docusate. Vital signs reveal a blood pressure of 132/84 mmHg, a heart rate of 102/min, a respiratory rate of 16/min, and a temperature of 37.0°C (98.6°F). Physical examination demonstrates a massively distended, tympanic abdomen. There is generalized mild discomfort upon deep palpation, but no guarding, rigidity, or rebound tenderness is elicited. Digital rectal examination reveals an empty rectal vault without masses or gross blood.

Arrange the following steps in the most appropriate chronological sequence for the standard diagnostic and therapeutic management of this patient.

A 68-year-old man with a history of stable coronary artery disease, type 2 diabetes mellitus, and hypertension presents to the clinic for preoperative evaluation prior to an elective open repair of an abdominal aortic aneurysm. The surgical team is systematically assessing his perioperative risk for major adverse cardiac events (MACE). According to the American College of Cardiology/American Heart Association (ACC/AHA) guidelines, arrange the following steps of the preoperative cardiovascular evaluation algorithm in the correct chronological sequence.

A 58-year-old woman is brought to the emergency department by ambulance following an episode of profuse, bright red vomiting at home. She has a documented history of primary biliary cholangitis and decompensated cirrhosis. Upon arrival, her blood pressure is 82/45 mm Hg, and her pulse is 128/min. She appears lethargic and pale. Physical examination reveals scleral icterus, shifting dullness in the abdomen, and spider angiomas on her chest. Arrange the following interventions in the most appropriate sequential order for managing this patient's acute presentation.

A 29-year-old male arrives at the trauma center after a severe crush injury caused by a tractor rolling over his lower body. He is awake and in significant pain. Vital signs reveal a blood pressure of $115/75$ mm Hg, heart rate of $98$/min, and respiratory rate of $18$/min. Primary survey is intact, and a FAST examination is negative for intraperitoneal fluid. Pelvic radiography confirms a displaced butterfly fracture of the pubic rami. On genitourinary examination, there is severe perineal ecchymosis and frank blood visible at the urethral meatus. The patient reports a strong urge to urinate but is unable to void. A digital rectal examination demonstrates a high-riding, nonpalpable prostate. Arrange the following diagnostic and therapeutic steps in the most appropriate chronological sequence for managing this patient's genitourinary injuries.

Emergency medical services transport a 54-year-old male to the trauma bay following an episode of massive hematemesis. His spouse reports that he has known alcoholic cirrhosis and has been increasingly confused over the past two days. Upon arrival, the patient is obtunded, withdrawing only to painful stimuli, and actively vomiting bright red blood. Vital signs show a heart rate of 132/min, blood pressure of 82/48 mm Hg, and respiratory rate of 24/min. Arrange the following clinical interventions in the most appropriate sequential order for managing this patient's condition.