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Zorluk: OrtaPreoperative and Postoperative Care

A 68-year-old woman is evaluated on postoperative day 4 following an elective open cholecystectomy. Her medical history includes heart failure with preserved ejection fraction, essential hypertension, and diet-controlled type 2 diabetes mellitus. A Foley catheter placed during surgery was removed on postoperative day 2.

Yesterday, she reported new-onset dysuria and urinary frequency. A urinalysis and urine culture were obtained.

Today, she reports a mild, non-productive cough but denies shortness of breath. She has developed a new fever. Her temperature is 38.6°C (101.5°F), blood pressure is 130/80 mm Hg, pulse is 88/min, and respiratory rate is 16/min. Oxygen saturation is 96% on room air.

Physical examination shows a comfortable patient. Lung auscultation reveals decreased breath sounds and mild crackles at the bases bilaterally, which clear completely after she takes a deep breath and coughs. The abdomen is soft, and the right subcostal incision is intact without erythema or discharge. There is mild suprapubic tenderness. Bilateral lower extremities exhibit no edema, erythema, or calf tenderness.

The urine culture from yesterday returns positive for >100,000 CFU/mL of *Escherichia coli*. Susceptibility testing shows the organism is sensitive to cephalexin, nitrofurantoin, and ceftriaxone, but resistant to ampicillin.

Which of the following are the most appropriate next steps in the management of this patient? (Select 2)

  1. Initiate targeted antimicrobial therapy with oral cephalexinCevap
  2. Encourage frequent use of an incentive spirometerCevap
  3. C
    Initiate broad-spectrum therapy with intravenous meropenem
  4. D
    Administer intravenous furosemide
  5. E
    Obtain a bilateral lower extremity venous duplex ultrasound

Cevap

The most appropriate next steps are to initiate targeted antimicrobial therapy with oral cephalexin and encourage frequent use of an incentive spirometer.
This patient presents with a classic postoperative day 4 fever caused by a urinary tract infection ('Water'), which is strongly associated with recent indwelling catheter use. With definitive culture and sensitivity results demonstrating pan-susceptible Escherichia coli, the standard of care is to initiate targeted, narrow-spectrum antimicrobial therapy such as oral cephalexin. Concurrently, the patient exhibits signs of postoperative atelectasis ('Wind')—specifically, a mild cough and basilar crackles that clear with coughing. Incentive spirometry and deep breathing exercises are the appropriate management for atelectasis to promote lung expansion and prevent progression to pneumonia.

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1
Identify the source of the postoperative fever.
The patient's symptoms (dysuria), timing (postoperative day 4), and positive urine culture point definitively to a urinary tract infection (UTI).
Establishing the etiology of the fever is necessary to guide targeted therapy and avoid unnecessary diagnostic testing.
2
Select the appropriate antimicrobial therapy.
Oral cephalexin is chosen based on the susceptibility report.
Antibiotic stewardship requires using the narrowest-spectrum effective agent once culture and sensitivity data are available.
3
Evaluate the patient's respiratory physical exam findings.
Basilar crackles that clear with coughing indicate dependent atelectasis, a benign and common postoperative finding, rather than fluid overload from her heart failure.
To distinguish between self-resolving postoperative pulmonary changes and acute cardiopulmonary decompensation requiring medication.
4
Determine the management for the respiratory findings.
Recommend non-pharmacologic lung expansion techniques, specifically incentive spirometry.
Incentive spirometry effectively treats atelectasis and prevents progression to hospital-acquired pneumonia.

Anahtar Kavram

Management of postoperative patients requires systematically identifying the source of fever using the '5 Ws' timeframe, applying antibiotic stewardship when culture data is available, and accurately distinguishing benign postoperative changes (like atelectasis) from acute exacerbations of underlying comorbidities.
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Preoperative and Postoperative Care

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