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. What information should the nurse offer a client who uses herbal therapies to supplement their diet and manage common ailments about the general use of herbal supplements?
- A. Most herbs are toxic or carcinogenic and should only be used when proven effective.
- B. There is no evidence that herbs are safe or effective compared to conventional supplements in maintaining health.
- C. Herbs should be obtained from manufacturers with a history of quality control for their supplements.
- D. Herbal therapies may mask the symptoms of serious diseases, requiring frequent medical evaluations during use.
Correct answer: C
Rationale: It is essential for clients using herbal therapies to obtain herbs from manufacturers with a history of quality control for their supplements. This recommendation is crucial because quality control processes help in maintaining the purity and effectiveness of the herbal supplements. Option A is incorrect as it provides a negative and inaccurate generalization about herbs. Option B is also incorrect as there is existing evidence on the safety and efficacy of certain herbal supplements. Option D is not the most relevant information to offer initially to a client seeking advice on the general use of herbal supplements.
3. During a client assessment, the healthcare provider is evaluating cranial nerve function. Which assessment finding suggests that cranial nerve II is intact?
- A. The client can hear a whisper from 1 to 2 feet away.
- B. The client can identify an object by touch.
- C. The client can shrug the shoulders against resistance.
- D. The client can read a Snellen chart from 20 feet away.
Correct answer: D
Rationale: The ability to read a Snellen chart from 20 feet away indicates intact cranial nerve II (optic nerve), responsible for vision. Hearing a whisper (A) is associated with cranial nerve VIII (vestibulocochlear nerve), identifying an object by touch (B) is related to cranial nerves V (trigeminal nerve) and VII (facial nerve), and shoulder shrugging against resistance (C) is a test for cranial nerve XI (accessory nerve). Thus, the correct answer is D as it specifically tests the function of cranial nerve II.
4. A client with a diagnosis of hyperkalemia is receiving sodium polystyrene sulfonate (Kayexalate). Which laboratory value should the nurse monitor to evaluate the effectiveness of this medication?
- A. Serum sodium level.
- B. Serum potassium level.
- C. Serum calcium level.
- D. Serum glucose level.
Correct answer: B
Rationale: The correct answer is B: Serum potassium level. Sodium polystyrene sulfonate (Kayexalate) is used to treat hyperkalemia by exchanging sodium ions for potassium ions in the intestines, leading to potassium removal from the body. Monitoring the serum potassium level allows the nurse to assess the effectiveness of this medication in lowering the elevated potassium levels. Serum sodium (A), calcium (C), and glucose (D) levels are not directly impacted by the action of sodium polystyrene sulfonate.
5. An adult has a coagulation time of 20 minutes. The nurse should observe the client for which of the following?
- A. Blood clots
- B. Ecchymotic areas
- C. Jaundice
- D. Infection
Correct answer: B
Rationale: A coagulation time of 20 minutes is prolonged, suggesting a potential bleeding disorder. Ecchymotic areas, which are areas of bruising, are common signs of abnormal bleeding. Therefore, the nurse should observe the client for ecchymotic areas to monitor for potential bleeding issues. Blood clots are not typically associated with prolonged coagulation time but rather with excessive clotting. Jaundice is related to liver dysfunction, and infection is not directly linked to coagulation time.
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