a cd4 lymphocyte count is performed on a client who is infected with hiv the results of the test indicate a cd4 count of 450 cellsl the nurse interpre
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HESI RN

HESI RN Medical Surgical Practice Exam

1. 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:

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.

2. The client is being taught about the best time to plan sexual intercourse in order to conceive. Which information should be provided?

Correct answer: A

Rationale: The correct answer is A: 'Two weeks before menstruation.' Ovulation typically occurs 14 days before menstruation begins during a typical 28-day cycle. To increase the chances of conception, sexual intercourse should occur within 24 hours of ovulation. High estrogen levels during ovulation lead to changes in vaginal mucous discharge, making it more 'slippery' and stretchy. Basal temperature rises during ovulation. The timing of intercourse during the day is less significant than ensuring it happens around ovulation. The other options are incorrect because planning intercourse two weeks before menstruation is likely to miss the fertile window, thick vaginal mucous discharge indicates ovulation is approaching, and low basal temperature is not indicative of the fertile period.

3. The client with chronic renal failure is receiving hemodialysis. Which of the following laboratory values should the nurse monitor closely?

Correct answer: C

Rationale: The serum potassium level should be monitored closely in clients undergoing hemodialysis due to the risk of hyperkalemia. Hemodialysis is used to remove waste products and excess electrolytes like potassium from the blood. Monitoring potassium levels is crucial because an imbalance can lead to serious cardiac complications, making it the priority value to monitor in this scenario. Monitoring hemoglobin levels (choice A) is important for anemia assessment in chronic renal failure but is not directly related to hemodialysis. Blood urea nitrogen (BUN) levels (choice B) and creatinine levels (choice D) are commonly monitored in renal function tests but are not the top priority for monitoring in a client undergoing hemodialysis.

4. The nurse is assessing a client with a diagnosis of pre-renal acute kidney injury (AKI). Which condition would the nurse expect to find in the client’s recent history?

Correct answer: B

Rationale: In pre-renal acute kidney injury, there is a decrease in perfusion to the kidneys. Myocardial infarction can lead to decreased blood flow to the kidneys, causing pre-renal AKI. Pyelonephritis is an intrinsic/intrarenal cause of AKI involving kidney damage. Bladder cancer and kidney stones are post-renal causes of AKI due to urinary flow obstruction, not related to perfusion issues seen in pre-renal AKI.

5. A woman has been scheduled for a routine mammogram. What should the nurse tell the client?

Correct answer: D

Rationale: The correct answer is D. The nurse should instruct the client to avoid using deodorants, powders, or creams on the day of the mammogram. These products used in the axillary or breast area can interfere with the mammogram results and must be washed off before the test. Choices A, B, and C are incorrect because mammography typically takes less than 30 minutes, there is no need for fasting before the test, and some discomfort may be experienced during the procedure.

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