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Question 1 of 5

A child is to receive heparin sodium 5 units per kilogram of body weight by subcutaneous route every 4 hours. The child weighs 52.8 lb. How many units should the child receive in a 24-hour period?

Correct Answer: C

Rationale: Weight: 52.8 lb ÷ 2.2 = 24 kg. Dose: 5 units/kg × 24 kg = 120 units every 4 hours. 24 hours ÷ 4 = 6 doses/day. 120 × 6 = 720 units/day.

Question 2 of 5

A client has orders for placing a small-bore nasoenteric tube. Which finding in the health history would prompt the nurse to notify the prescriber before placing tube?

Correct Answer: B

Rationale: A basilar skull fracture is a contraindication for nasoenteric tube placement due to the risk of intracranial insertion. Other conditions are not absolute contraindications.

Question 3 of 5

The primary cause of anemia in a client with chronic renal failure is:

Correct Answer: D

Rationale: Chronic renal failure reduces erythropoietin production by the kidneys, leading to decreased red blood cell production and anemia.

Question 4 of 5

The nurse has an order to give 500 mL of 0.45% NS over 12 hours. The IV set has a drop factor of 10. How many gtts/min should the client receive? Fill in the blank.

Correct Answer: 7

Rationale: Rate = 500 mL ÷ 12 hr = 41.67 mL/hr. Drops/min = (41.67 mL/hr × 10 gtts/mL) ÷ 60 min = 6.94 gtts/min, rounded to 7 gtts/min.

Question 5 of 5

A 19-year-old male has been experiencing vomiting and diarrhea for 3 days due to food poisoning. The nurse expects a urine specific gravity of

Correct Answer: D

Rationale: Dehydration from vomiting and diarrhea increases urine specific gravity (normal 1.005-1.030). 1.041 indicates concentrated urine due to fluid loss.

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