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. That every tablespoon has 300 mg of the drug: One tablespoon is 15 mL, which in this preparation contains 300 mg only after reconstitution. However, instructing the patient this way could lead to dosing errors, especially if they use household utensils instead of an accurate measuring device.

B. That every teaspoon has 300 mg of the drug: One teaspoon equals 5 mL, which contains 100 mg after reconstitution. Telling the patient that a teaspoon has 300 mg would result in a threefold overdose, making this statement unsafe.

C. That they should use a measuring device that accurately measures mL: Using an oral syringe or dosing cup ensures precise measurement of the prescribed 100 mg (5 mL) dose. This method minimizes errors and promotes safe administration, particularly for pediatric or adult liquid medications.

D. That they should mix the ordered dose with an 8-oz glass of water: The preparation instructions specify adding 9 mL of water to reconstitute the medication, not mixing the dose in a glass of water. Following this incorrect instruction could result in improper concentration and dosing errors.

A. Injected into the subcutaneous tissue B. Placed between the gum and lining of the cheek C. Placed under the tongue D. Inhaled through the nasal mucosa

Correct Answer is C

Explanation

A. Injected into the subcutaneous tissue: Subcutaneous injections deliver medication into the fatty tissue under the skin. This route is not appropriate for a sublingual order and would prevent rapid absorption through the oral mucosa.

B. Placed between the gum and lining of the cheek: This describes the buccal route, which allows absorption through the cheek lining. While similar to sublingual, it is not the intended route for a sublingual medication, which must be placed under the tongue for rapid systemic absorption.

C. Placed under the tongue: Sublingual administration involves placing the medication beneath the tongue, allowing it to dissolve and absorb directly into the bloodstream. This route bypasses the gastrointestinal tract and first-pass metabolism, providing rapid onset of action.

D. Inhaled through the nasal mucosa: Nasal administration delivers medication through the respiratory mucosa and is not appropriate for sublingual drugs. Using this route would result in improper absorption and therapeutic effect.

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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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Correct Answer is C

Explanation

The medication order is to give 0.5 mg of a drug sublingually. The nurse demonstrates proper administration of the drug when the drug is:

Correct Answer is C

Explanation

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