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Soru

Zorluk: KolayCardiovascular System

A 6868-year-old woman arrives at the urgent care clinic reporting severe, progressively worsening difficulty breathing over the last 4848 hours. She notes that she has been waking up gasping for air in the middle of the night and now requires sleeping in her recliner to breathe comfortably. Her past medical history includes long-standing high blood pressure and diet-controlled type 22 diabetes mellitus. She smoked cigarettes for 3030 years but quit a decade ago. Vital signs show a blood pressure of 162/96162/96 mm Hg, heart rate of 105105/min, and respiratory rate of 2424/min. Pulse oximetry indicates 92%92\% oxygen saturation on ambient air. Physical examination demonstrates noticeable distension of the neck veins while sitting upright. Lung auscultation reveals bilateral crackles at the bases. Cardiac auscultation detects an extra low-pitched sound occurring just after the second heart sound. Moderate pitting edema is present in both lower legs. Which of the following is the most appropriate initial pharmacological intervention to relieve this patient's respiratory distress?

  1. A
    Inhaled levalbuterol
  2. B
    Subcutaneous enoxaparin
  3. Intravenous torsemideCevap
  4. D
    Oral azithromycin
  5. E
    Intravenous hydrocortisone

Cevap

Intravenous torsemide
The patient's presentation of progressive orthopnea, paroxysmal nocturnal dyspnea, basilar crackles, an early diastolic sound (S3 gallop), and distended neck veins strongly indicates acute decompensated heart failure (ADHF) with volume overload. Intravenous loop diuretics, such as torsemide, are the cornerstone of initial pharmacological therapy for ADHF. They work rapidly to reduce intravascular volume, alleviate pulmonary congestion, and improve respiratory symptoms.

Adım Adım Çözüm

1
Identify the primary clinical syndrome based on the patient's symptoms and vital signs.
The patient presents with acute-onset respiratory distress, marked orthopnea, and paroxysmal nocturnal dyspnea.
These are classic historical features of volume overload and pulmonary congestion.
2
Analyze the physical examination findings to confirm the etiology of the respiratory distress.
Findings include elevated jugular venous pressure, an early diastolic extra heart sound (S3 gallop), basilar crackles, and peripheral edema.
An S3 gallop is highly specific for increased left ventricular end-diastolic pressure, while distended neck veins and peripheral edema indicate right-sided heart failure secondary to left-sided failure.
3
Determine the most appropriate initial pharmacological management for the confirmed diagnosis.
Intravenous loop diuretics (such as torsemide or bumetanide) are indicated.
Loop diuretics rapidly promote diuresis and venodilation, effectively decreasing preload and alleviating pulmonary edema in acute decompensated heart failure.

Anahtar Kavram

Differentiating acute decompensated heart failure from pulmonary exacerbations and selecting rapid-acting loop diuretics as the initial therapy.
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Konular

Cardiovascular System

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