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A nurse is preparing to administer heparin at 1,000 units/hr via continuous IV infusion to a client who had a coronary artery bypass graft. Available is heparin 25,000 units in dextrose 5% in water in 250 mL. The nurse should set the IV pump to deliver how many mL/hr? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)

Answer and Explanation

The Correct Answer is ["10"]

The formula to calculate the IV flow rate is:

mL/hr =

(Desired dose (units/hr)×Total volume (mL))/ Available dose

Substituting the given values:

(1,000×250)/25000

= 250,000/25,000

= 10ml/hr

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Naxlex Comprehensive Predictor Exams

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Correct Answer is D

Explanation

A. Antibiotic therapy. This is incorrect because there is no indication of an infection. The WBC count is within the normal range, and there are no symptoms suggestive of a bacterial infection.
B. Protective environment. This is incorrect because a protective environment is used for immunocompromised clients, such as those undergoing chemotherapy or with severe neutropenia, which is not the case here.
C. Blood transfusion. This is incorrect because although the hemoglobin level is low (8.1 g/dL), it is not critically low enough to require a transfusion. Instead, iron supplementation is the preferred treatment.
D. Iron supplementation. This is correct because the child’s hemoglobin and hematocrit levels indicate mild anemia, likely due to excessive cow’s milk intake, which can lead to iron deficiency anemia in toddlers. Iron supplementation will help correct the deficiency.

A. A bluish-white colored pupil B. Decrease in peripheral vision C. Increased intraocular pressure D. Loss of central vision

Correct Answer is A

Explanation

A. A bluish-white colored pupil. This is correct because cataracts cause clouding of the lens, leading to a grayish or bluish-white appearance of the pupil. This opacity gradually impairs vision.
B. Decrease in peripheral vision. This is incorrect because a loss of peripheral vision is characteristic of glaucoma, not cataracts.
C. Increased intraocular pressure. This is incorrect because increased intraocular pressure is a hallmark of glaucoma, not cataracts.
D. Loss of central vision. This is incorrect because central vision loss is associated with macular degeneration rather than cataracts.

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Nursing Test Bank

Naxlex Comprehensive Predictor Exams

Correct Answer is D

Explanation

A nurse is performing an eye examination on a client. Which of the following findings should indicate to the nurse that the client might have cataracts?

Correct Answer is A

Explanation

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A nurse is providing change-of-shift report about a client to an oncoming nurse. Which of the following information should the nurse include?

A nurse is preparing a client for a pelvic examination. Which of the following actions should the nurse take?

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