HESI RN
HESI RN CAT Exam Quizlet
1. The nurse is assessing a client who has a prescription for digoxin (Lanoxin). Which finding indicates that the client is at risk for digoxin toxicity?
- A. Heart rate of 60 beats per minute
- B. Blood pressure of 120/80 mm Hg
- C. Respiratory rate of 18 breaths per minute
- D. Serum potassium level of 3.0 mEq/L
Correct answer: D
Rationale: A low serum potassium level increases the risk of digoxin toxicity. Digoxin toxicity is more likely to occur in individuals with low potassium levels because potassium is crucial for proper heart function. A heart rate of 60 beats per minute, blood pressure of 120/80 mm Hg, and respiratory rate of 18 breaths per minute are within normal ranges and do not directly indicate an increased risk of digoxin toxicity.
2. The nurse is evaluating the health status of an older client. Which finding is most important for the nurse to report to the healthcare provider?
- A. Client reports decreased urine output
- B. Client reports loss of appetite
- C. Client reports pain in the lower back
- D. Client reports a persistent cough
Correct answer: C
Rationale: Pain in the lower back is a significant finding in an older client as it can indicate underlying issues such as kidney problems, spinal issues, or even aortic aneurysm. These conditions can be serious and require prompt medical attention. Decreased urine output (choice A) could indicate dehydration or kidney issues but is not as urgent as lower back pain. Loss of appetite (choice B) may be concerning but is not as critical as the potential life-threatening conditions associated with lower back pain. A persistent cough (choice D) is important to assess but is generally not as urgent as the potential serious implications of lower back pain in an older client.
3. The mother of a 6-year-old anemic boy is taught by the nurse to give iron supplements. Which statement indicates that the mother understands the proper administration of iron?
- A. The iron tablets will be absorbed between meals, on an empty stomach
- B. I should give the iron tablets with his milk and cereal each morning
- C. Iron preparations can be taken with antibiotics if he develops an infection
- D. The iron tablets may cause him to sunburn more easily so he should wear sunscreen
Correct answer: A
Rationale: The correct answer is A because iron supplements are best absorbed on an empty stomach, which maximizes their effectiveness. Giving iron tablets with milk or calcium-rich foods, as mentioned in choice B, should be avoided as they can decrease iron absorption. Choice C is incorrect because iron preparations should not be taken with antibiotics due to potential interactions. Choice D is also incorrect as iron tablets do not cause an increased risk of sunburn, so sunscreen is not necessary specifically due to iron supplementation.
4. A client in acute renal failure has a serum potassium of 7.5 mEq/L. Based on this finding, the nurse should anticipate implementing which action?
- A. Administer an IV of normal saline rapidly and NPH insulin subcutaneously.
- B. Administer a retention enema of Kayexalate.
- C. Add 40 mEq of KCL (potassium chloride) to the present IV solution.
- D. Administer a lidocaine bolus IV push.
Correct answer: B
Rationale: In acute renal failure with a high serum potassium level, the priority intervention is to lower potassium levels to prevent complications like cardiac arrhythmias. Administering a retention enema of Kayexalate is the correct action as it helps lower high potassium levels by exchanging sodium for potassium in the intestines. Options A, C, and D are incorrect. Administering normal saline rapidly and NPH insulin or adding more potassium to the IV solution can further increase potassium levels, worsening the condition. Lidocaine is not indicated for treating hyperkalemia.
5. A client with type 2 diabetes mellitus is admitted for antibiotic treatment of a leg ulcer. Which signs and symptoms, indicative of hyperosmolar hyperglycemic nonketotic syndrome (HHNS), should the nurse report to the healthcare provider? (Select one that doesn't apply.)
- A. Increased heart rate
- B. Visual disturbances
- C. Presence of uremic frost
- D. Decreased mentation
Correct answer: C
Rationale: The correct answer is C, 'Presence of uremic frost.' Increased heart rate, visual disturbances, and decreased mentation are all signs and symptoms indicative of hyperosmolar hyperglycemic nonketotic syndrome (HHNS). Uremic frost, however, is not associated with HHNS but is a clinical finding seen in severe cases of chronic kidney disease. Therefore, the nurse should report the presence of uremic frost to the healthcare provider as a separate concern from HHNS.
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