A patient with hypotension has an order for 500 mL of plasma protein fraction to be infused over 2 hours. How many milliliters per hour should the IV pump be programmed for?
The Correct Answer is ["250"]
To calculate the IV infusion rate in mL/hr, use the formula:
Rate (mL/hr) = Total Volume (mL) ÷ Time (hr)
Rate = 500 mL ÷ 2 hr = 250 mL/hr
Answer: 250 mL/hr
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["A","B","D"]
Explanation
A. Intravenous calcium gluconate or calcium chloride is used to stabilize the cardiac membrane and prevent fatal arrhythmias caused by high potassium levels. It does not lower potassium but buys time for other treatments to work.
B. Furosemide is a loop diuretic that promotes renal potassium excretion. If the kidneys are still producing urine, it can help lower potassium levels.
C. Amphogel (aluminum hydroxide) is a phosphate binder used in hyperphosphatemia, not in the management of hyperkalemia.
D. This combination is given to drive potassium into cells quickly, reducing serum potassium levels. Dextrose prevents hypoglycemia from insulin administration.
Correct Answer is C
Explanation
A. Portal hypertension leads to complications like varices and ascites but is not the direct cause of encephalopathy.
B. Ascites is a fluid accumulation in the abdomen related to portal hypertension and low albumin, not directly linked to altered mental status.
C. High ammonia levels are the primary cause of hepatic encephalopathy in cirrhosis. The damaged liver is unable to effectively convert ammonia to urea, resulting in ammonia buildup in the blood, which affects brain function and leads to confusion, lethargy, or even coma.
D. Vitamin K deficiency contributes to bleeding problems, not encephalopathy.
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