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Soru

Zorluk: OrtaGeneral Internal Medicine

An 81-year-old man is brought to the emergency department from a skilled nursing facility due to sudden-onset severe respiratory distress that began 2 hours ago. The nursing facility staff reports that he has been coughing up pink, frothy sputum. His medical history includes hypertension, coronary artery disease, and severe chronic obstructive pulmonary disease. He is currently prescribed inhaled tiotropium, as-needed albuterol, aspirin, and metoprolol. Upon arrival, his temperature is 37.0°C (98.6°F), blood pressure is 172/98 mmHg, pulse is 114/min, and respirations are 28/min. Pulse oximetry is 86% on room air. Physical examination reveals an anxious patient sitting upright and using accessory muscles of respiration. Jugular venous pulsations are visible 6 cm above the sternal angle. Auscultation of the chest reveals diffuse bilateral crackles extending to the apices and scattered expiratory wheezing. Cardiac examination reveals a regular tachycardia and a distinct third heart sound. Bilateral lower extremity pitting edema is present. A point-of-care urinalysis shows positive leukocyte esterase, positive nitrites, and 20 white blood cells per high-power field. Which of the following is the most appropriate initial pharmacological management for this patient?

  1. Intravenous bumetanideCevap
  2. B
    Intravenous methylprednisolone
  3. C
    Nebulized ipratropium bromide
  4. D
    Intravenous piperacillin-tazobactam
  5. E
    Intravenous levofloxacin

Cevap

Administration of a loop diuretic, such as intravenous bumetanide, is the most appropriate initial therapy.
The correct intervention focuses on rapid volume offloading. The patient's presentation—sudden severe dyspnea, hypertension, pink frothy sputum, JVD, bilateral crackles, and an S3 gallop—is the classic clinical picture of acute decompensated heart failure (ADHF) presenting as cardiogenic pulmonary edema. Intravenous loop diuretics (like bumetanide or furosemide) are the mainstay of initial pharmacological therapy because they rapidly reduce intravascular volume and venous return, alleviating pulmonary congestion.

Adım Adım Çözüm

1
Analyze the patient's acute respiratory presentation and vital signs.
The patient has severe hypoxia, tachypnea, severe hypertension, and is coughing up pink, frothy sputum.
Identifying the acuity and characteristics of the respiratory failure helps narrow the differential diagnosis.
2
Evaluate the physical examination findings to differentiate the cause of dyspnea.
Elevated jugular venous pressure, bilateral crackles, an S3 gallop, and lower extremity edema strongly indicate volume overload and left ventricular failure.
Patients with a history of COPD can present with wheezing during heart failure exacerbations (cardiac asthma), but an S3 gallop and JVD are specific to a cardiogenic etiology.
3
Determine the significance of the abnormal urinalysis in the absence of fever or specific urinary symptoms.
The abnormal urinalysis in an elderly nursing home resident without systemic infectious signs likely represents asymptomatic bacteriuria.
Avoidance of unnecessary antibiotics (antibiotic stewardship) is critical unless the patient has a clear symptomatic infection.
4
Select the most appropriate initial management based on the primary diagnosis.
The primary issue is acute decompensated heart failure (ADHF); therefore, intravenous loop diuretics are the first-line pharmacological treatment.
Loop diuretics decrease fluid volume and venous return (preload), rapidly improving pulmonary congestion and oxygenation.

Anahtar Kavram

Patients with acute decompensated heart failure often present with sudden severe dyspnea, hypertension, an S3 gallop, and pulmonary crackles; initial management prioritizes preload reduction with intravenous loop diuretics.
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General Internal Medicine

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