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. 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.
3. The health care provider has changed a client's prescription from the PO to the IV route of administration. The nurse should anticipate which change in the pharmacokinetic properties of the medication?
- A. The client will experience increased tolerance to the drug's effects and may need a higher dose.
- B. The onset of action of the drug will occur more rapidly, resulting in a more rapid effect.
- C. The medication will be more highly protein-bound, increasing the duration of action.
- D. The therapeutic index will be increased, placing the client at greater risk for toxicity.
Correct answer: B
Rationale: When a medication is administered via the IV route, the absorptive process is bypassed, leading to a more rapid onset of action. This results in a faster effect of the drug. Choice A is incorrect because changing the route of administration does not necessarily lead to increased tolerance or the need for a higher dose. Choice C is incorrect as changing the route of administration does not directly affect the protein binding of a medication. Choice D is incorrect because increasing the therapeutic index would actually reduce the risk of toxicity, not increase it.
4. The healthcare professional in the emergency department observes a colleague viewing the electronic health record (EHR) of a client who holds an elected position in the community. The client is not a part of the colleague’s assignment. Which action should the healthcare professional implement?
- A. Communicate the colleague’s actions to the unit charge nurse
- B. Send an email to facility administration reporting the action
- C. Write an anonymous complaint to a professional website
- D. Post a comment about the action on a staff discussion board
Correct answer: A
Rationale: Observing a colleague accessing a patient's EHR without a legitimate reason is a violation of HIPAA, which protects patient confidentiality. The appropriate action in this scenario is to communicate the colleague’s actions to the unit charge nurse immediately. The charge nurse can then address the issue internally and ensure that patient privacy is maintained. Reporting the incident through the appropriate channels within the healthcare facility is the most effective and professional way to handle such breaches of patient confidentiality. Choices B, C, and D are incorrect because they do not involve addressing the issue internally within the healthcare facility. Reporting such incidents internally is essential to ensure that patient privacy is protected, and the matter is handled appropriately by healthcare authorities.
5. The healthcare provider is aware that malnutrition is a common problem among clients served by a community health clinic for the homeless. Which laboratory value is the most reliable indicator of chronic protein malnutrition?
- A. Low serum albumin level
- B. Low serum transferrin level
- C. High hemoglobin level
- D. High cholesterol level
Correct answer: A
Rationale: A low serum albumin level is the most reliable indicator of chronic protein malnutrition. Serum albumin levels reflect long-term protein status, and a significantly lowered level usually indicates ongoing protein deficiency. Other laboratory values, such as serum transferrin, hemoglobin, or cholesterol levels, may be affected by various factors and conditions, but serum albumin is a more specific marker for chronic protein malnutrition.
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