A physician prescribes Vancomycin 20 mg/kg IV. The client weighs 110 lbs. The medication is available in vials which contain 500 mg per 8 mL. What should the nurse withdraw from the vial?

Answer and Explanation

The Correct Answer is ["16"]

To calculate the volume to be withdrawn from the vial, we need to follow these steps:

Convert the client's weight from pounds to kilograms:
- 110 lbs * (1 kg / 2.2 lbs) = 50 kg
Calculate the total dose of Vancomycin based on the prescribed dosage:
- 20 mg/kg * 50 kg = 1000 mg
Calculate the volume to be withdrawn from the vial:
- 1000 mg * (8 mL / 500 mg) = 16 mL

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Correct Answer is B

Explanation

A. Magnesium at 2.0 mEq/L is within the normal range (1.6-2.2 mg/dL) and does not require immediate intervention.
B. A serum sodium level of 126 mEq/L indicates hyponatremia, which can lead to neurological complications, particularly in patients with brain cancer. Immediate reporting is necessary to manage potential risks such as seizures or altered mental status.
C. A potassium level of 3.5 mEq/L is on the lower limit of normal (3.5-5.3 mEq/L) but is still considered acceptable and does not require urgent action.
D. Calcium at 10 mg/L is an incorrect unit for this context, as total serum calcium is typically measured in mg/dL, and 10 mg/dL falls within the normal range (8.2-10.2 mg/dL).

A. Slow the rate of infusion B. Apply a warm compress to the site C. Discontinue the infusion D. Check for blood return

Correct Answer is C

Explanation

A. Slowing the rate of infusion may provide some temporary relief, but it does not address the underlying issue and may worsen the situation.
B. Applying a warm compress may soothe discomfort but is not the priority action when a burning sensation is reported, which could indicate potential extravasation.
C. Discontinuing the infusion is the best first action to prevent further damage to the tissue and to assess for complications such as infiltration or extravasation.
D. Checking for blood return can help assess the patency of the IV line, but the priority is to stop the infusion immediately to prevent complications.

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Electrolyte	Normal Value Range
Serum sodium	135-145 mEq/L
Serum chloride	97-107 mEq/L
Serum potassium	3.5-5:3 mEq/L
Serum magnesium	1.6-2.2 mg/dL
Total serum calcium	8.2-10.2 mg/dL
lonized calcium	4.6-5.3 mg/dL
Serum phosphorus	2.5-4.5 mg/dL
Serum osmolality	275-295 mOsm/kg
Urine osmolality	250-900 mOsm/kg

A physician prescribes Vancomycin 20 mg/kg IV. The client weighs 110 lbs. The medication is available in vials which contain 500 mg per 8 mL. What should the nurse withdraw from the vial?

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Naxlex Comprehensive Predictor Exams

Correct Answer is B

Explanation

A client, who is receiving intravenous chemotherapy into a peripheral vein, says that the arm burns terribly in and around the intravenous site. What is the nurse's best first action?

Correct Answer is C

Explanation

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