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Zorluk: KolayPharmacologic Interventions

A 6868-year-old man presents to the emergency department with severe shortness of breath, orthopnea, and lower extremity swelling that has progressively worsened over the past 33 days. He has a history of ischemic cardiomyopathy with a left ventricular ejection fraction of 25%25\%, type 22 diabetes mellitus, and hypertension. His temperature is 37.037.0°C (98.698.6°F), blood pressure is 158/92158/92 mmHg, heart rate is 112112/min, and respiratory rate is 2424/min. Oxygen saturation is 88%88\% on room air. Physical examination reveals elevated jugular venous pressure, bilateral crackles extending to the mid-lung fields, and 3+3+ bilateral pitting pedal edema. An electrocardiogram shows sinus tachycardia with no acute ischemic changes. Which of the following pharmacologic interventions are indicated for the immediate management of this patient's acute presentation? (Select all that apply)

  1. Intravenous furosemideCevap
  2. Intravenous nitroglycerinCevap
  3. C
    Oral metoprolol succinate
  4. D
    Intravenous verapamil
  5. E
    Oral pioglitazone

Cevap

The correct interventions are intravenous furosemide and intravenous nitroglycerin.
The correct answers address the immediate need for preload reduction in a patient with acute decompensated heart failure (ADHF) and hypertension. Intravenous furosemide is a loop diuretic that rapidly induces diuresis and venodilation, directly relieving pulmonary congestion. Intravenous nitroglycerin is a potent venodilator (and mild arterial dilator) that further reduces preload; it is specifically indicated as an adjunctive therapy for ADHF patients presenting with elevated blood pressure, providing rapid and significant symptomatic relief.

Adım Adım Çözüm

1
Identify the primary clinical syndrome.
The patient presents with acute decompensated heart failure (ADHF) characterized by severe volume overload (pulmonary edema, elevated JVP, peripheral edema) and elevated blood pressure.
Accurate diagnosis determines the required hemodynamic shifts needed for immediate stabilization.
2
Select appropriate acute symptom-relieving therapies.
Intravenous loop diuretics (furosemide) are chosen to remove excess volume, and intravenous vasodilators (nitroglycerin) are chosen to rapidly reduce preload and afterload.
These agents provide rapid symptomatic improvement in ADHF when systemic blood pressure is adequately elevated.
3
Identify and avoid contraindicated medications.
Exclude beta-blockers, non-dihydropyridine calcium channel blockers, and thiazolidinediones.
Administering negatively inotropic medications or fluid-retaining agents will acutely worsen cardiogenic pulmonary edema and delay stabilization.

Anahtar Kavram

Acute decompensated heart failure with volume overload and hypertension requires immediate preload reduction using intravenous loop diuretics and vasodilators, while strictly avoiding negatively inotropic or fluid-retaining medications.
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Pharmacologic Interventions

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