A patient on mechanical ventilation is receiving total parenteral nutrition (TPN). Which statement is true?
The patient's head should remain elevated at 45 degrees to avoid aspiration.
TPN is preferred over the use of enteral feeding to avoid the complication of aspiration.
Lipid intake should be maintained at greater than 2 g/kg/day.
Excessive calorie intake can cause an increase in PaCO2
The Correct Answer is D
A. The head of the bed should be elevated to at least 30 degrees to reduce the risk of aspiration, not 45 degrees.
B. Enteral feeding is typically preferred over TPN because it preserves gut integrity and reduces the risk of complications such as infections.
C. Lipid intake should generally be monitored and controlled, but greater than 2 g/kg/day is not recommended and may lead to complications such as hyperlipidemia.
D. Excessive calorie intake, particularly from carbohydrates, can increase carbon dioxide production, leading to a rise in PaCO2 levels in mechanically ventilated patients.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is {"dropdown-group-1":"B","dropdown-group-2":"C"}
Explanation
Blank 1
Prepare for defibrillation: The client is unresponsive and has ventricular tachycardia. This indicates a life-threatening arrhythmia. If a patient with VTach is pulseless, the treatment is defibrillation.
Blank 2
Vtach (Ventricular tachycardia): The ECG tracing shows a rapid, wide-complex tachycardia, which is the hallmark of ventricular tachycardia.
Correct Answer is A
Explanation
A. Respiratory acidosis is correct because the patient has a low pH (acidosis) and elevated PaCO₂, indicating hypoventilation as the primary cause.
B. Metabolic alkalosis is incorrect because bicarbonate is within the normal range, and there is no metabolic compensation.
C. Respiratory alkalosis is incorrect because alkalosis would present with a high pH and low PaCO₂, the opposite of this scenario.
D. Metabolic acidosis is incorrect because bicarbonate is normal, ruling out a metabolic cause.
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