The physician orders vancomycin 2gm in 500mL of 0.9% N$ to infuse over 4 hours. Calculate the flow rate in milliliters per hour. Round to the nearest whole number.
The Correct Answer is ["125"]
Rationale:
Flow rate (mL/hr) = Total volume (mL) ÷ Time (hr)
Flow rate = 500 mL ÷ 4 hr = 125 mL/hr
Rounded flow rate: 125 mL/hr
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Rationale:
A. Urinary catheters drain urine but do not typically cause significant electrolyte loss leading to hypokalemia.
B. Chest tubes remove air, blood, or fluid from the pleural space but do not significantly affect potassium levels.
C. NG (nasogastric) tubes to suction can lead to hypokalemia because they remove gastric contents, which include potassium and other electrolytes. Prolonged suctioning can cause significant electrolyte imbalances.
D. Nephrostomy tubes drain urine directly from the kidney and do not typically lead to potassium depletion unless there is a high-output or concurrent renal dysfunction.
Correct Answer is C
Explanation
Rationale:
A. Decreased PaCO₂ occurs in respiratory alkalosis, not metabolic alkalosis.
B. Increased PaCO₂ may occur as compensation, but in uncompensated metabolic alkalosis, this has not yet occurred.
C. In metabolic alkalosis, especially from vomiting (loss of gastric acid), there is a primary increase in bicarbonate (HCO₃⁻).
D. Decreased pH is associated with acidosis, not alkalosis.
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