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. The nurse is providing discharge teaching to a client with a new prescription for warfarin (Coumadin). Which dietary instruction should the nurse include?
- A. Avoid foods high in vitamin K
- B. Increase intake of leafy green vegetables
- C. Consume a consistent amount of foods high in potassium
- D. Limit intake of high-protein foods
Correct answer: A
Rationale: The correct dietary instruction for a client taking warfarin is to avoid foods high in vitamin K. Warfarin is an anticoagulant that works by inhibiting vitamin K-dependent clotting factors. Consuming foods high in vitamin K, such as leafy green vegetables, can antagonize the effects of warfarin, potentially leading to treatment inefficacy or fluctuations in anticoagulation levels. Therefore, clients on warfarin therapy should be advised to avoid foods high in vitamin K to maintain the effectiveness of the medication. Choices B, C, and D are incorrect because increasing leafy green vegetables (choice B) would introduce more vitamin K, consuming a consistent amount of foods high in potassium (choice C) is not directly related to warfarin therapy, and limiting high-protein foods (choice D) is not a specific concern for clients on warfarin therapy.
3. A male client with acquired immunodeficiency syndrome (AIDS) develops cryptococcal meningitis and tells the nurse he does not want to be resuscitated if his breathing stops. What action should the nurse implement?
- A. Document the client's request in the medical record.
- B. Ask the client if this decision has been discussed with his healthcare provider.
- C. Inform the client that a written, notarized advance directive is required to withhold resuscitation efforts.
- D. Advise the client to designate a person to make healthcare decisions when the client is unable to do so.
Correct answer: B
Rationale: When a client expresses the desire to not be resuscitated, it is essential to inquire if this decision has been discussed with their healthcare provider. This is important to ensure that the client's wishes are appropriately documented and legally binding through the healthcare provider's guidance. It is crucial that healthcare decisions, especially those involving life-saving measures, are well-communicated and documented to respect the client's autonomy and ensure their wishes are honored. Option A is not the best action as it does not address the need to verify discussion with the healthcare provider. Option C is incorrect as it overemphasizes the need for a notarized advance directive, which may not be immediately feasible or necessary in this urgent situation. Option D is not the most appropriate action at this time since the immediate focus should be on clarifying if the decision has been communicated with the healthcare provider.
4. Which action should the nurse implement when using the confrontation technique during a vision exam?
- A. Use an ophthalmoscope to observe the client's pupil constriction when a strong light is shone on it.
- B. Stand behind the client and direct the client to report when an object enters the peripheral field of vision.
- C. Display a series of four cards with printing of varying sizes to the client and ask which card the client sees most clearly.
- D. Sit facing the client, look directly at the client's face, and move an object inward from the periphery.
Correct answer: D
Rationale: During a vision exam, the confrontation technique is used to assess peripheral vision. By sitting facing the client and moving an object inward from the periphery while looking directly at the client's face, the nurse allows the client to indicate when the object enters the visual field. This method helps in determining the extent of the client's peripheral vision accurately. Choices A, B, and C are incorrect as they do not describe the appropriate method for using the confrontation technique during a vision exam. Choice A involves using an ophthalmoscope to observe pupil constriction, choice B involves testing the peripheral field of vision without the confrontation technique, and choice C describes the Snellen eye chart test for visual acuity, which is not related to the confrontation technique.
5. When bathing an uncircumcised boy older than 3 years, which action should the nurse take?
- A. Remind the child to clean his genital area.
- B. Defer perineal care due to the child's age.
- C. Retract the foreskin gently to cleanse the penis.
- D. Inquire about the reason for the child not being circumcised.
Correct answer: C
Rationale: The correct action when bathing an uncircumcised boy older than 3 years is to gently retract the foreskin to cleanse the penis. This is important to ensure proper hygiene and prevent the accumulation of bacteria that can lead to infections. It is not advisable to defer perineal care because of the child's age, as hygiene is crucial at any age. Asking the parents about the circumcision status may not be relevant during routine perineal care. Reminding the child to clean his genital area is not as effective as directly cleaning the area during bathing.
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