The nurse is preparing to record the patient's weight (80 lb) in kilogram (kg). Which of the following equivalent measurements would the nurse use to convert pounds to kilograms?

2.5 kg = 1 lb

2.5 lb = 1 kg

2.2 kg = 1 lb

2.2 lb = 1 kg

Answer and Explanation

The Correct Answer is D

A. 2.5 kg = 1 lb: This conversion overestimates the weight in kilograms. One pound is actually equal to approximately 0.454 kg.

B. 2.5 lb = 1 kg: This incorrectly suggests that 1 kilogram equals 2.5 pounds, which underestimates the weight in pounds. The accurate conversion requires 1 kg ≈ 2.2 lb.

C. 2.2 kg = 1 lb: This incorrectly reverses the relationship. One pound is approximately 0.454 kg, not 2.2 kg.

D. 2.2 lb = 1 kg: This is the correct conversion factor. One kilogram equals approximately 2.2 pounds, which the nurse can use to convert 80 lb to kilograms safely.

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Correct Answer is C

Explanation

A. in: The abbreviation “in” is commonly used to indicate inches and is widely recognized in clinical and household contexts. It does not pose a risk of misinterpretation in medication administration.

B. tsp: “tsp” stands for teaspoon and is a standard, accepted abbreviation for liquid measurements. It is safe for use when teaching patients or administering medications.

C. OZS: The correct abbreviation for ounces is “oz,” not “OZS.” Using “OZS” can lead to misinterpretation and dosing errors, making this abbreviation unsafe and in need of clarification.

D. tbsp: “tbsp” stands for tablespoon and is an accepted and widely understood abbreviation. It is standard for measuring liquid medications and does not require questioning.

A. 500 B. 5,000 C. 0.005 D. 0.05

Correct Answer is B

Explanation

Given volume = 5 liters (L)

Conversion factor: 1 Liter (L) = 1,000 milliliters (mL)

Calculate the volume in milliliters (mL).

Volume (mL) = Volume in L x Conversion factor

= 5 L x 1,000 mL/L

= 5,000 mL

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The nurse is preparing to record the patient's weight (80 lb) in kilogram (kg). Which of the following equivalent measurements would the nurse use to convert pounds to kilograms?

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