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.)
The Correct Answer is ["10"]
ML
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
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
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Correct Answer is B
Explanation
A. "Store unused patches in the refrigerator." Scopolamine patches should be stored at room temperature, not in the refrigerator.
B. "Apply the patch prior to traveling." The patch should be applied at least four hours before travel to allow time for absorption and effectiveness.
C. "Place the patch on your upper arm." The patch should be applied behind the ear, not on the upper arm, for optimal absorption.
D. "Replace a dislodged patch onto the same location." A new patch should be applied to a different area to prevent skin irritation.
Correct Answer is B
Explanation
A. Protective environment. This is incorrect because a protective environment is used for immunocompromised clients, not for those with bacterial meningitis.
B. Droplet. This is correct because bacterial meningitis is transmitted through respiratory secretions. Droplet precautions, including wearing a mask when within 3 to 6 feet of the client, are necessary to prevent the spread of infection.
C. Contact. This is incorrect because bacterial meningitis is not primarily transmitted through direct contact with surfaces or bodily fluids, making contact precautions unnecessary.
D. Airborne. This is incorrect because bacterial meningitis does not spread through airborne particles that remain suspended in the air, so airborne precautions are not required.
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