A nurse is preparing to administer a daily dose of warfarin to a client. Which of the following laboratory values should the nurse check prior to administration?

WBC

INR

Platelets

АPTT

Answer and Explanation

The Correct Answer is B

A. WBC: White blood cell count is unrelated to warfarin therapy.
B. INR: Warfarin’s anticoagulant effect is monitored using the International Normalized Ratio (INR). A therapeutic INR range is typically 2–3 for most indications.
C. Platelets: While platelets are important for overall clotting, INR is the specific measure for warfarin.
D. APTT: Activated partial thromboplastin time (APTT) is used to monitor heparin, not warfarin.

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Correct Answer is C

Explanation

A. Dispose of the excess medication in the sharps container: Medication should not be disposed of in sharps containers; proper protocols must be followed.
B. Give the full contents of the prefilled syringe: Administering more than the prescribed dose can lead to overdose and adverse effects.
C. Discard the excess medication with a second nurse as a witness: Controlled substances, such as morphine, require a witness for proper disposal of unused portions.
D. Inject the prescribed dose and save the rest for later use: Leftover medication should never be saved for later, as this violates safety protocols and poses legal risks.

A. Clients must have a Papanicolaou test every 6 months during treatment. B. Sexually active female clients must use two forms of birth control during treatment. C. Clients must begin a daily supplement of vitamin A for 1 month prior to initiating therapy. D. Female clients must have a negative mammogram prior to beginning therapy.

Correct Answer is B

Explanation

A. Pap smears are not related to isotretinoin therapy.
B. Due to teratogenic risks, two forms of contraception are mandatory, starting 1 month before treatment.
C. Vitamin A supplementation increases toxicity risk and is contraindicated.
D. Mammograms are not required for isotretinoin therapy.

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A nurse is preparing to administer a daily dose of warfarin to a client. Which of the following laboratory values should the nurse check prior to administration?

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Naxlex Comprehensive Predictor Exams

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Explanation

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