HESI RN
HESI Fundamentals Practice Exam
1. How many drops per minute should a client weighing 182 pounds receive if a nurse mixes 50 mg of Nipride in 250 ml of D5W and plans to administer the solution at a rate of 5 mcg/kg/min? The drip factor is 60 gtt/ml.
- A. 31 gtt/min.
- B. 62 gtt/min.
- C. 93 gtt/min.
- D. 124 gtt/min.
Correct answer: D
Rationale: To determine the drops per minute for the client, first convert the client's weight from pounds to kilograms: 182/2.2 = 82.73 kg. Calculate the dosage by multiplying 5 mcg by the client's weight in kg: 5 mcg/kg/min × 82.73 kg = 413.65 mcg/min. Find the concentration of the solution in mcg/ml by dividing 250 ml by 50,000 mcg (50 mg): 250 ml/50,000 mcg = 200 mcg/ml. As the client needs 413.65 mcg/min and the solution is 200 mcg/ml, the client should receive 2.07 ml per minute. Finally, using the drip factor of 60 gtt/ml, multiply the ml per minute by the drip factor: 60 gtt/ml × 2.07 ml/min = 124.28 gtt/min, which rounds to 124 gtt/min. Therefore, the client should receive 124 drops per minute. Choice D is the correct answer. Choices A, B, and C are incorrect because they do not reflect the accurate calculation based on the client's weight, dosage, concentration of the solution, and drip factor.
2. After an adult had an indwelling catheter removed, the nurse catheterizes them as ordered and obtains 200 cc of urine. What is the best interpretation of this finding?
- A. Is voiding normally.
- B. Has urinary retention.
- C. Has developed renal failure.
- D. Needs an indwelling catheter.
Correct answer: B
Rationale: The finding of obtaining 200 cc of urine after catheterization indicates urinary retention, as the bladder did not empty completely after the first void. This situation may require further assessment and intervention to address the issue of incomplete bladder emptying. Choice A is incorrect because voiding normally would indicate a larger amount of urine output. Choice C is incorrect as renal failure would typically present with other signs and symptoms. Choice D is incorrect as the presence of urinary retention does not necessarily mean the need for an indwelling catheter immediately.
3. A client with a history of myocardial infarction (MI) is admitted with chest pain. Which laboratory test should the nurse expect to be ordered to determine if the client is experiencing another MI?
- A. Troponin
- B. Myoglobin
- C. CK-MB
- D. C-reactive protein
Correct answer: A
Rationale: Troponin is the most specific and sensitive laboratory test for detecting myocardial infarction (MI). It is released when there is damage to the heart muscle, making it a valuable marker for diagnosing another MI. Myoglobin and CK-MB can also be elevated in MI, but troponin is preferred due to its higher specificity. C-reactive protein is a marker of inflammation and not specific to MI.
4. Which assessment data indicates the need for the nurse to include the problem 'Risk for falls' in a client’s plan of care?
- A. Recent serum hemoglobin level of 16 g/dL
- B. Opioid analgesic received one hour ago
- C. Stooped posture with an unsteady gait
- D. Expressed feelings of depression
Correct answer: B
Rationale: The correct answer is B. The administration of opioid analgesics can impair balance and increase the risk of falls, justifying the inclusion of 'Risk for falls' in the client’s care plan. Choice A, a recent serum hemoglobin level of 16 g/dL, is not directly related to the risk of falls. Choice C, stooped posture with an unsteady gait, may indicate a risk for falls, but the direct influence of opioid analgesics on balance is more immediate. Choice D, expressed feelings of depression, while important, is not a direct indicator of the immediate risk for falls associated with opioid analgesic use.
5. When planning care for a client with an indwelling urinary catheter, which nursing diagnosis has the highest priority?
- A. Self-care deficit
- B. Functional incontinence
- C. Fluid volume deficit
- D. High risk for infection
Correct answer: D
Rationale: The highest priority nursing diagnosis when planning care for a client with an indwelling urinary catheter is 'High risk for infection.' Indwelling urinary catheters pose a significant risk of infection due to their direct contact with the urinary system. Preventing and managing infections is crucial in the care of these clients. Monitoring for signs of infection, following proper catheter care protocols, and maintaining aseptic technique during catheter maintenance are essential steps to prevent complications associated with catheter-related infections. Choices A, B, and C are not the highest priority because in this case, the immediate concern is the risk of infection associated with the presence of the urinary catheter. While self-care deficit, functional incontinence, and fluid volume deficit are important considerations in overall patient care, they are not as critical as preventing potentially serious infections related to the indwelling urinary catheter.
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