HESI RN
HESI RN Medical Surgical Practice Exam
1. A client admitted to the hospital with a diagnosis of acute pancreatitis has blood drawn for several serum laboratory tests. Which of the following serum amylase values, noted by the nurse reviewing the results, would be expected in this client at this time?
- A. 48 units/L
- B. 97 units/L
- C. 150 units/L
- D. 395 units/L
Correct answer: D
Rationale: The correct answer is D: "395 units/L." The normal serum amylase range is 25 to 151 units/L. In acute pancreatitis, the amylase level is greatly increased, typically exceeding the upper limit of the normal range. Choices A, B, and C fall within the normal range of serum amylase levels and would not be expected in a client with acute pancreatitis.
2. A client is being prepared for transfer to the operating room. Which of the following actions should the nurse take in the care of this client at this time?
- A. Ensuring that the client has voided
- B. Administering all daily medications
- C. Practicing postoperative breathing exercises
- D. Verifying that the client has not eaten for the last 24 hours
Correct answer: A
Rationale: The nurse should ensure that the client has voided, especially if a Foley catheter is not in place. This step is important to prevent urinary retention during the surgical procedure. Administering all daily medications just before surgery is not standard practice. The physician typically provides specific orders regarding which medications can be taken with a sip of water before surgery. Postoperative breathing exercises are usually taught after surgery to prevent complications like atelectasis. Verifying that the client has not eaten for the last 24 hours is not a standard preoperative practice; instead, the client is usually instructed to fast for a specific period before surgery to reduce the risk of aspiration during anesthesia.
3. A client with stress incontinence is being taught about pelvic muscle exercises. Which statements should be included by the nurse? (Select all that apply.)
- A. Starting and stopping the urine stream involves using pelvic muscles.
- B. Tighten pelvic muscles for a slow count of 10 and then relax for a slow count of 10.
- C. Pelvic muscle exercises can be performed in various positions: lying down, sitting up, and standing.
- D. A & B
Correct answer: D
Rationale: The correct statements to include when teaching a client with stress incontinence about pelvic muscle exercises are that starting and stopping the urine stream involve using pelvic muscles and that tightening pelvic muscles for a slow count of 10 and then relaxing for a slow count of 10 can help strengthen them. It is essential to highlight that pelvic muscle exercises can be performed in various positions, including lying down, sitting up, and standing. This variety in positions helps engage the muscles effectively. Performing these exercises 15 times in each position can aid in strengthening the pelvic floor muscles. Consistent exercise over several weeks typically leads to improved control over urine leakage. Choice C is incorrect because pelvic muscle exercises can be performed in different positions and are not limited to sitting upright with feet on the floor.
4. A CD4+ lymphocyte count is performed on a client infected with HIV. The results of the test indicate a CD4+ count of 450 cells/L. The nurse interprets this test result as indicating:
- A. Improvement in the client
- B. The need for antiretroviral therapy
- C. The need to discontinue antiretroviral therapy
- D. An effective response to the treatment for HIV
Correct answer: B
Rationale: A CD4+ count of 450 cells/L is below the normal range (500-1600 cells/mcL), indicating a decline in immune function in the client. Antiretroviral therapy is recommended when the CD4+ count falls below 500 cells/mcL or below 25%, or when the client displays symptoms of HIV. Therefore, the interpretation of this test result suggests that the client requires antiretroviral therapy to manage the HIV infection. Choices A, C, and D are incorrect because a CD4+ count of 450 cells/L does not signify improvement, discontinuation of therapy, or an effective response to treatment for HIV.
5. Which of the following lab results is most indicative of dehydration?
- A. Low sodium levels.
- B. Elevated creatinine levels.
- C. Low potassium levels.
- D. High blood glucose levels.
Correct answer: B
Rationale: Elevated creatinine levels are indicative of dehydration because when the body is dehydrated, the kidneys concentrate urine to preserve fluid, leading to higher levels of creatinine. Low sodium levels (Choice A) can be seen in conditions like hyponatremia but are not specific to dehydration. Low potassium levels (Choice C) are more commonly associated with conditions like hypokalemia. High blood glucose levels (Choice D) are typically seen in diabetes and are not specific indicators of dehydration.
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