Which of the following factors is NOT associated with a higher risk of post-surgical complications in obese patients?
Higher risk of respiratory complications due to decreased lung function
Increased risk of cardiovascular events due to strain on the heart
Increased risk of infection due to impaired wound healing
Decreased risk of blood clots due to improved circulation
The Correct Answer is D
A. Obese patients often have decreased lung function due to reduced chest wall compliance and increased abdominal pressure, which can impair respiratory mechanics. This leads to a higher risk of respiratory complications such as hypoventilation, atelectasis, and pneumonia post-surgery.
B. Obesity places additional strain on the cardiovascular system, increasing the risk of cardiovascular events like hypertension, heart attack, and stroke. This strain is compounded during surgery due to increased cardiac workload and potential fluid shifts.
C. Obesity impairs wound healing due to several factors, including decreased oxygenation to tissues, impaired immune function, and increased adipose tissue which can create a moist environment conducive to infection. This increases the risk of postoperative infections.
D. In fact, obesity is associated with an increased risk of blood clots (venous thromboembolism) due to reduced mobility, chronic inflammation, and altered coagulation factors. Obesity does not improve circulation; rather, it often exacerbates venous stasis and clot formation.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. pH 7.35, PaCO2 40 mm Hg, HCO3-25 mEq/L: This is within normal ranges and does not indicate acidosis.
B. pH 7.32, PaCO2 47 mm Hg. HCO3-23 mEq/L: This indicates respiratory acidosis, not metabolic.
C. pH 7.3, PaCO2 36 mm Hg. HCO3- 19 mEq/L: This indicates metabolic acidosis. The pH is low (acidic), and the HCO3- (bicarbonate) is decreased. The PaCO2 is within normal limits, indicating the respiratory system is compensating for the metabolic acidosis.
D. pH 7.5, PaCO2 35 mm Hg, HCO3- 35 mEq/L: This indicates alkalosis, not acidosis.
Correct Answer is D
Explanation
A. This is caused by an increase in acid or a loss of bicarbonate. Vomiting does not typically lead to this.
B. This is caused by a buildup of carbon dioxide in the blood, usually due to inadequate breathing.
C. This is caused by hyperventilation and excessive loss of carbon dioxide.
D. This is caused by a loss of acid or an increase in bicarbonate. Vomiting can lead to a loss of stomach acid, resulting in metabolic alkalosis.
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