HESI RN
HESI Medical Surgical Specialty Exam
1. When a patient is receiving high doses of a cephalosporin, which laboratory values will this patient's nurse monitor closely?
- A. Blood urea nitrogen (BUN), serum creatinine, and liver function tests
- B. Complete blood count and electrolytes
- C. Serum calcium and magnesium
- D. Serum glucose and lipids
Correct answer: A
Rationale: When a patient is receiving high doses of a cephalosporin, such as cefazolin, the nurse should closely monitor laboratory values that indicate renal and hepatic function. This includes checking the Blood Urea Nitrogen (BUN) and serum creatinine levels to assess kidney function. Additionally, monitoring liver function tests, such as AST, ALT, ALP, LDH, and bilirubin, is essential as cephalosporins can affect liver enzymes. Therefore, options B, C, and D are incorrect as they do not specifically address the parameters that are most pertinent when administering high doses of cephalosporins.
2. A client with early breast cancer receives the results of a breast biopsy and asks the nurse to explain the meaning of staging and the type of receptors found on the cancer cells. Which explanation should the nurse provide?
- A. Lymph node involvement is not significant.
- B. Small tumors are aggressive and indicate poor prognosis.
- C. The tumor's estrogen receptor guides treatment options.
- D. Stage I indicates metastasis.
Correct answer: C
Rationale: Treatment decisions and prediction of prognosis are related to the tumor's receptor status, such as estrogen and progesterone receptor status which commonly are well-differentiated, have a lower chance of recurrence, and are receptive to hormonal therapy. Tumor staging designates tumor size and spread of breast cancer cells into axillary lymph nodes, which is one of the most important prognostic factors in early-stage breast cancer.
3. A client's urinalysis results show a urine osmolality of 1200 mOsm/L. What action should the nurse take?
- A. Encourage the client to drink more fluids.
- B. Contact the provider and recommend a low-sodium diet.
- C. Prepare to administer an intravenous diuretic.
- D. Obtain a suction device and implement seizure precautions.
Correct answer: A
Rationale: The correct action for the nurse to take when the client has a urine osmolality of 1200 mOsm/L, indicating dehydration, is to encourage the client to drink more fluids. Dehydration can lead to elevated urine osmolality, and increasing fluid intake can help rehydrate the client. A low-sodium diet is not the priority in this scenario as it would not directly address the dehydration indicated by the high urine osmolality. Administering an intravenous diuretic would further concentrate the urine, exacerbating the dehydration. Obtaining a suction device and implementing seizure precautions are not indicated based on the client's urine osmolality results and would not address the underlying issue of dehydration.
4. Blood is drawn from a client with suspected uric acid calculi for a serum uric acid determination. Which value does the nurse recognize as a normal uric acid level?
- A. 1.7 mg/dL
- B. 5.8 mg/dL
- C. 8.9 mg/dL
- D. 12.8 mg/dL
Correct answer: B
Rationale: The normal range for uric acid is 4.5 to 8 mg/dL for males and 2.5 to 6.2 mg/dL for females. A uric acid level of 5.8 mg/dL falls within the normal range. Choices A, C, and D are outside the normal reference range, making them incorrect. Choice B is the correct answer as it aligns with the typical uric acid levels in the blood.
5. A nurse teaches clients about the difference between urge incontinence and stress incontinence. Which statements should the nurse include in this education? (Select all that apply.)
- A. Urge incontinence involves a post-void residual volume less than 50 mL.
- B. Stress incontinence occurs due to weak pelvic floor muscles.
- C. Stress incontinence usually occurs in people with dementia.
- D. Urge incontinence can be managed by increasing fluid intake.
Correct answer: B
Rationale: The correct statement to include in the education about urge incontinence and stress incontinence is choice B. Stress incontinence occurs due to weak pelvic floor muscles or urethral sphincter, leading to the inability to tighten the urethra sufficiently to overcome increased detrusor pressure. This condition is common after childbirth when pelvic muscles are stretched and weakened. Urge incontinence, on the other hand, is characterized by the inability to suppress the contraction signal from the detrusor muscle. It is often associated with abnormal detrusor contractions, which can be due to neurological abnormalities rather than post-void residual volume. Choice A is incorrect because urge incontinence is not defined by post-void residual volume. Choice C is incorrect as stress incontinence is not usually linked to dementia. Choice D is incorrect because increasing fluid intake is not a management strategy for urge incontinence.
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