HESI RN
HESI Medical Surgical Specialty Exam
1. A healthcare professional is monitoring the respiratory status of a client who has just undergone surgery and is wearing a pulse oximeter. Which of the following coexisting problems is cause for the healthcare professional to suspect that the oxygen saturation readings are not entirely accurate?
- A. Infection
- B. Hypertension
- C. Low blood pressure
- D. Loss of cough reflex
Correct answer: C
Rationale: Low blood pressure (hypotension), shock, and the use of peripheral vasoconstricting medications can lead to inaccurate pulse oximetry readings due to impaired peripheral perfusion. Hypertension and infection are not typically associated with inaccurate pulse oximetry readings, while the loss of cough reflex does not directly affect oxygen saturation readings.
2. A patient has begun taking spironolactone (Aldactone) in addition to a thiazide diuretic. With the addition of the spironolactone, the nurse will counsel this patient to
- A. not take a potassium supplement daily.
- B. recognize that abdominal cramping is a common side effect.
- C. report decreased urine output to the provider.
- D. take these medications in the morning.
Correct answer: C
Rationale: When combining a potassium-sparing diuretic like spironolactone with a thiazide diuretic, there is an increased risk of hyperkalemia, especially in patients with poor renal function. Therefore, the patient should be educated to report any decrease in urine output, which could indicate a potential issue with kidney function. Choice A is incorrect because taking additional potassium supplements can further increase the risk of hyperkalemia. Choice B is incorrect as abdominal cramping is not a common side effect of spironolactone. Choice D is incorrect because the timing of medication administration is not directly related to the addition of spironolactone and thiazide diuretic; there is no specific recommendation to take these medications only at bedtime.
3. The nurse is caring for a patient who will receive 10% calcium gluconate to treat a serum potassium level of 5.9 mEq/L. The nurse performs a drug history prior to beginning the infusion. Which drug taken by the patient would cause concern?
- A. Digitalis
- B. Hydrochlorothiazide
- C. Hydrocortisone
- D. Vitamin D
Correct answer: A
Rationale: Calcium gluconate is administered to treat hyperkalemia by reducing myocardial irritability. When given to a patient taking digitalis, it can lead to digitalis toxicity. Digitalis and calcium gluconate both affect cardiac function, and their concomitant use can potentiate adverse effects. Hydrochlorothiazide, Hydrocortisone, and Vitamin D may impact potassium levels, but they do not interact with calcium gluconate in a way that would cause concern for toxicity.
4. A client who has had two episodes of bacterial cystitis in the last 6 months is being assessed by a nurse. Which questions should the nurse ask? (Select all that apply.)
- A. How much water do you drink every day?
- B. Do you take estrogen replacement therapy?
- C. Does anyone in your family have a history of cystitis?
- D. All of the Above
Correct answer: D
Rationale: The correct answers are all of the above (D). Asking about fluid intake (choice A) is important as it can affect the risk of cystitis. Estrogen levels (choice B) can also impact the likelihood of recurrent cystitis. Family history (choice C) is relevant as certain genetic factors can predispose individuals to cystitis. Cranberry juice, not grapefruit or orange juice, has been found to reduce the risk of bacterial cystitis by increasing the acidic pH. Therefore, choices A, B, and C are all pertinent questions to ask during the assessment of a client with recurrent bacterial cystitis.
5. A client with an oversecretion of renin has a health history reviewed by a nurse. Which disorder should the nurse correlate with this assessment finding?
- A. Alzheimer’s disease
- B. Hypertension
- C. Diabetes mellitus
- D. Viral hepatitis
Correct answer: B
Rationale: Renin is secreted in response to low blood volume, blood pressure, or blood sodium levels. Excessive renin secretion can lead to persistent hypertension. Renin plays no role in Alzheimer's disease, diabetes mellitus, or viral hepatitis. Therefore, the correct correlation with oversecretion of renin is hypertension.
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