A nurse is caring for a client is who has a deep vein thrombosis and is prescribed heparin by continuous IV infusion at 1,200 units/hr. Available is heparin 25,000 units in 500 mL D5W. The nurse should set the IV pump to deliver how many mL/hr? (Round the answer to the nearest tenth/whole number. Use a leading zero if it applies. Do not use a trailing zero.)

Answer and Explanation

The Correct Answer is ["24"]

- First, determine the concentration of the heparin solution. In this case, it's 25,000 units in 500 mL, which means there are 50 units per mL.

- Next, calculate the required rate to deliver 1,200 units per hour. Since the concentration is 50 units per mL, divide 1,200 units by 50 units/mL to find the required mL per hour.

- The calculation will be 1,200 units/hr ÷ 50 units/mL = 24 mL/hr.

- Since the question asks to round to the nearest tenth or whole number, and the result is a whole number, the IV pump should be set to deliver 24.0 mL/hr.

Answer =24

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Correct Answer is B

Explanation

A. Instructing the client on the use of crutches is important but not as immediately critical as monitoring for complications.

B. Performing neurovascular checks of the extremities is the most important action to detect complications such as compartment syndrome or impaired circulation.

C. Medicating the client for pain is important but secondary to immediate assessment for complications.

D. Directing the client to perform exercises of the ankle and toes is important for recovery but not as urgent as monitoring for postoperative complications.

A. Apical pulse rate is different than the radial pulse rate B. Drop in systolic BP by 20 mm Hg when changing positions C. Increase in heart rate by 20% when moving from sitting to standing D. Decrease in systolic pressure by more than 10 mm Hg during inspiration

Correct Answer is D

Explanation

A. A difference between the apical pulse rate and the radial pulse rate is more indicative of a pulse deficit, which is not specific to constrictive pericarditis.
B. A drop in systolic blood pressure by 20 mm Hg when changing positions describes orthostatic hypotension, not paradoxical blood pressure.
C. An increase in heart rate when moving from sitting to standing reflects orthostatic changes, not paradoxical blood pressure.
D. Paradoxical blood pressure refers to a decrease in systolic blood pressure of more than 10 mm Hg during inspiration, which can occur in constrictive pericarditis due to impaired filling of the heart during diastole.

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Naxlex Comprehensive Predictor Exams

A nurse is caring for a client who is postoperative following an open reduction and internal fixation of a fractured femur. Which of the following actions is the most important for the nurse to complete in the postoperative period?

Correct Answer is B

Explanation

A nurse is assessing for paradoxical blood pressure on a client who has constrictive pericarditis. Which of the following findings should the nurse expect?

Correct Answer is D

Explanation

A nurse is monitoring the cardiac output of a client who has left-sided heart failure using pulse pressure analysis. Which of the following findings can compromise the readings?

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