A nurse is preparing to administer heparin 250 units/kg subcutaneously to a client who weighs 150 lb. The heparin is available in a prefilled syringe containing 10,000 units/mL. How many mL should the nurse administer?

Answer and Explanation

The Correct Answer is ["1.7"]

Step 1 is (150 lb × 1 kg ÷ 2.2 lb) × 250 units. This calculates the total units required. The answer is 17045.45 units.

Step 2 is 17045.45 units ÷ 10,000 units/mL = 1.7 mL.

The final calculated answer is 1.7 mL.

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Correct Answer is D

Explanation

Choice A rationale

LDL (low-density lipoprotein) levels are relevant to cardiovascular risk assessment but not directly impacted by warfarin therapy, making it irrelevant for monitoring its effects.

Choice B rationale

BUN (blood urea nitrogen) reflects renal function but does not indicate coagulation status. Therefore, it is not a parameter used to guide warfarin therapy.

Choice C rationale

Hct (hematocrit) represents the proportion of red blood cells in blood and is unrelated to monitoring anticoagulation therapy. It does not reflect warfarin's therapeutic effects.

Choice D rationale

INR (international normalized ratio) measures blood coagulation and is used to monitor warfarin efficacy. Maintaining therapeutic INR prevents thromboembolic events and minimizes bleeding risks. A target INR range for atrial fibrillation is typically 2.0 to 3.0.

A. "I can have unprotected sex as long as I am taking acyclovir.”. B. "The virus cannot spread to areas other than the genital area.”. C. "The lesions may reoccur in times of stress.”. D. "I am only contagious while the lesions are present.”. . . .

Correct Answer is C

Explanation

Choice A rationale

Acyclovir reduces the frequency and severity of herpes outbreaks but does not prevent transmission. The virus can still be spread through asymptomatic viral shedding, and unprotected sex increases the risk of transmitting the infection to partners.

Choice B rationale

Herpes simplex virus type 2 primarily affects the genital area but can spread to other locations, such as the mouth or fingers, through direct contact with infected secretions. This statement is scientifically incorrect and reflects a lack of understanding.

Choice C rationale

Stress weakens the immune system, triggering latent herpes simplex virus reactivation. This leads to the recurrence of lesions as the virus travels along the nerve pathways to the skin or mucous membranes. Management includes antiviral medications and stress reduction strategies.

Choice D rationale

Herpes simplex virus is contagious even without visible lesions due to asymptomatic viral shedding. The virus can be transmitted to sexual partners during this period, making barrier protection essential at all times to reduce transmission risk. .

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A nurse is preparing to administer heparin 250 units/kg subcutaneously to a client who weighs 150 lb. The heparin is available in a prefilled syringe containing 10,000 units/mL. How many mL should the nurse administer?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A nurse is preparing to administer warfarin to a client who has chronic atrial fibrillation.Which of the following laboratory values should the nurse monitor prior to administering the medication?

Correct Answer is D

Explanation

A nurse is reinforcing teaching with a client who has herpes simplex virus type 2. Which of the following statements by the client indicates an understanding of the teaching?

Correct Answer is C

Explanation

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