HESI RN
HESI Medical Surgical Exam
1. A client with Diabetes Insipidus (DI) is being cared for by a nurse. Which data warrants the most immediate intervention by the nurse?
- A. Serum sodium of 185 mEq/L (185 mmol/L)
- B. Dry skin with poor skin turgor
- C. Apical rate of 110 beats per minute
- D. Polyuria and excessive thirst
Correct answer: A
Rationale: A serum sodium level of 185 mEq/L (185 mmol/L) is dangerously high and indicates severe dehydration, requiring immediate intervention to prevent neurological damage. The other options are not as critical as high serum sodium levels, which can lead to serious complications such as seizures, coma, and death if not promptly addressed. Dry skin with poor skin turgor and polyuria with excessive thirst are common findings in clients with Diabetes Insipidus and should be managed but do not pose an immediate threat to the client's life. An apical heart rate of 110 beats per minute may indicate tachycardia, which could be related to dehydration but is not as urgent as addressing the severe hypernatremia.
2. In assessing cancer risk, which woman is at greatest risk of developing breast cancer?
- A. A 35-year-old multipara who never breastfed.
- B. A 50-year-old whose mother had unilateral breast cancer.
- C. A 55-year-old whose mother-in-law had bilateral breast cancer.
- D. A 20-year-old whose menarche occurred at age 9.
Correct answer: B
Rationale: The correct answer is B because family history of breast cancer, specifically in the mother, is a significant risk factor for developing breast cancer. The age of 50 is also a risk factor for breast cancer. Choice A is less likely as breastfeeding can actually reduce the risk of breast cancer. Choice C is less relevant since the risk is higher with a direct family member. Choice D, although early menarche is a risk factor, the age of the individual is much lower compared to the other age-related risk factors.
3. A serum phenytoin determination is prescribed for a client with a seizure disorder who is taking phenytoin (Dilantin). Which result indicates that the prescribed dose of phenytoin is therapeutic?
- A. 3 mcg/mL
- B. 8 mcg/mL
- C. 16 mcg/mL
- D. 28 mcg/mL
Correct answer: C
Rationale: The correct answer is 16 mcg/mL (Choice C). The therapeutic serum phenytoin range is typically 10 to 20 mcg/mL. A level below this range may lead to continued seizure activity, indicating subtherapeutic levels. Choices A, B, and D are below the therapeutic range and would not be considered therapeutic for a client with a seizure disorder on phenytoin therapy.
4. The healthcare provider provides dietary instructions about iron-rich food to a client with iron deficiency anemia. Which food selection made by the client indicates a need for additional instructions?
- A. Liver
- B. Kidney beans
- C. Oranges
- D. Leafy green vegetables
Correct answer: C
Rationale: Oranges are not a good source of iron, so selecting oranges indicates a need for additional instructions. Oranges are high in vitamin C, which can enhance iron absorption from other sources, but they are not rich in iron themselves. Liver, kidney beans, and leafy green vegetables are good sources of iron and would be beneficial for a client with iron deficiency anemia. Therefore, the correct answer is C.
5. The client with peripheral artery disease has been prescribed clopidogrel (Plavix). The nurse understands that more teaching is necessary when the client states which of the following?
- A. I should not be surprised if I bruise more easily or if my gums bleed a little when brushing my teeth.
- B. It is important to take this medicine with food to enhance its effectiveness and minimize stomach upset.
- C. I should stop taking Plavix if it makes me feel weak and dizzy.
- D. The doctor prescribed this medicine to make my platelets less likely to stick together and help prevent clots from forming.
Correct answer: C
Rationale: The correct answer is C. Weakness, dizziness, and headache are common adverse effects of Plavix and should be reported. It is essential to consult a physician before stopping Plavix as it plays a crucial role in preventing platelets from sticking together and forming clots. Choices A, B, and D are incorrect. Choice A is a common side effect of Plavix and does not indicate a need for further teaching. Choice B is incorrect because taking Plavix with or without food can affect its absorption and effectiveness. Choice D correctly explains the purpose of prescribing Plavix to prevent clot formation.
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