A nurse is preparing to administer a scheduled dose of warfarin to a client. Which of the following laboratory tests should the nurse review prior to administration?

Total iron-binding capacity

WBC

PTT

Answer and Explanation

The Correct Answer is A

PT measures the time it takes for blood to clot, and it is particularly relevant for clients taking warfarin because warfarin works by inhibiting the synthesis of certain clotting factors, including factors II, VII, IX, and X, which are involved in the PT pathway. Monitoring PT levels helps ensure that the client is receiving an appropriate dose of warfarin to prevent clot formation without causing excessive bleeding.
B. Total iron-binding capacity (TIBC) is a test used to assess iron levels in the blood and is unrelated to warfarin therapy.
C. WBC (White Blood Cell count) is a test used to assess the number of white blood cells in the blood and is unrelated to warfarin therapy.
D. PTT (Partial Thromboplastin Time) is a test used to evaluate the intrinsic and common pathways of the coagulation cascade. It is used in the monitoring of heparin anticoagulant therapy. It is not typically used to monitor warfarin therapy

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Correct Answer is A

Explanation

Metformin is a glucose lowering agent that could lead to hypoglycemia in non-diabetics B,C,D- Metformin has no effect on thyroid function, uric acid and HDL levels

A. The client will administer insulin glargine before each meal. B. The client will use the deltoid muscle as an injection site. C. The client will take an additional dose of insulin glargine prior to exercise. D. The client will wear his reading glasses when drawing up a dose of insulin glargine.

Correct Answer is D

Explanation

Use of glasses in visual problems in the elderly avoid errors such as overdose. The use of insulin requires accurate visualization because overdosing the medication may lower the blood sugar levels too low leading to severe neuroglycopenic features or even death.

A- Long acting insulins like glargine are used as a basal insulin given once a day

B- The subcutaneous tissue is preferred

C- Insulin glargine is not added before exercise

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A nurse is preparing to administer a scheduled dose of warfarin to a client. Which of the following laboratory tests should the nurse review prior to administration?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

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Correct Answer is D

Explanation

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