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Zorluk: KolayPulmonary and Critical Care

A 68-year-old male retired teacher comes to the urgent care clinic complaining of a three-day history of increased shortness of breath and a persistent cough. He states his normally clear sputum has become thick and yellow. His medical history includes hypertension and a 45-pack-year smoking habit. He currently takes amlodipine. His temperature is 37.2°C (99.0°F), blood pressure is 134/82 mmHg, heart rate is 94/min, and respiratory rate is 24/min. Pulse oximetry reveals an oxygen saturation of 90% on room air. On auscultation, there is a prolonged expiratory phase with diffuse bilateral wheezing. Jugular venous distention is absent, and there is no dependent edema. A bedside arterial blood gas analysis on room air shows:

Laboratory TestResult
pH7.31
pCO252 mmHg
HCO3-26 mEq/L
pO260 mmHg

Which of the following is the most appropriate next step in the management of this patient?

  1. Administer inhaled short-acting bronchodilators, oral glucocorticoids, and an oral macrolide antibioticCevap
  2. B
    Administer intravenous furosemide and initiate noninvasive positive pressure ventilation
  3. C
    Administer intravenous piperacillin-tazobactam and vancomycin
  4. D
    Calculate the expected respiratory compensation using Winter's formula to guide therapy
  5. E
    Obtain an urgent echocardiogram and administer a brain natriuretic peptide (BNP) antagonist

Cevap

Administer inhaled short-acting bronchodilators, oral glucocorticoids, and an oral macrolide antibiotic
The correct approach is to administer inhaled short-acting bronchodilators, oral glucocorticoids, and an oral macrolide antibiotic. This patient's presentation of worsened dyspnea, increased cough, and purulent sputum in the setting of a significant smoking history is classic for an acute exacerbation of COPD. The standard pharmacological management for an exacerbation with purulent sputum includes short-acting bronchodilators (to relieve bronchospasm), systemic corticosteroids (to reduce airway inflammation), and antibiotics (to treat common bacterial triggers).

Adım Adım Çözüm

1
Analyze the patient's symptoms and history.
The patient has a heavy smoking history, increased shortness of breath, and a change to thick, yellow sputum.
Identifying the three cardinal symptoms (increased dyspnea, increased sputum volume, increased sputum purulence) is required to diagnose an acute COPD exacerbation.
2
Evaluate the physical exam findings.
Diffuse bilateral wheezing and a prolonged expiratory phase are present, with no signs of fluid overload.
This confirms obstructive lung disease and helps rule out acute decompensated heart failure.
3
Determine the appropriate management bundle.
The standard treatment bundle includes bronchodilators, systemic corticosteroids, and antibiotics.
Antibiotics are specifically indicated because the patient has increased sputum purulence along with other cardinal symptoms.

Anahtar Kavram

Diagnosis and management of an acute exacerbation of chronic obstructive pulmonary disease (COPD)
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Konular

Pulmonary and Critical Care

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