HESI RN
HESI RN CAT Exam Quizlet
1. The healthcare provider prescribes amoxicillin (Amoxil) 1.5 grams PO daily, in equally divided doses to be administered every 8 hours. The medication is available in a bottle labeled Amoxicillin (Amoxil) suspension 200 mg/5 ml. How many ml should the nurse administer every 8 hours?
- A. 10 ml
- B. 12.5 ml
- C. 15 ml
- D. 17.5 ml
Correct answer: B
Rationale: To calculate the correct dosage, first, determine the total daily dose: 1.5 grams = 1500 mg. Since the medication is 200 mg/5 ml, for 1500 mg, the nurse needs to administer 1500/200 = 7.5 times the 5 ml dose. Therefore, 7.5 x 5 ml = 37.5 ml total daily dose. To administer this every 8 hours, divide 37.5 ml by 3 (8 hours intervals in a day) to get 12.5 ml to be administered every 8 hours. Choice A, C, and D are incorrect as they do not reflect the correct calculation of the dose based on the prescription and the available concentration.
2. The nurse offers diet teaching to a female college student who was diagnosed with iron-deficiency anemia following her voluntary adoption of a lacto-vegetarian diet. What nutrients should the nurse suggest this client eat to best meet her nutritional needs while allowing her to adhere to a lacto-vegetarian diet?
- A. Drink whole milk instead of skim milk to enhance the body's production of amino acids
- B. Take vitamin K 10mg PO daily to enhance production of red blood cells
- C. Increase amounts of dark yellow vegetables such as carrots to fortify iron stores
- D. Combine several legumes and grains such as beans and rice to form complete proteins
Correct answer: D
Rationale: Combining legumes and grains ensures the client receives all essential amino acids to form complete proteins, which is crucial in a vegetarian diet. Options A, B, and C are incorrect. Option A is not necessary as there are plant-based sources of essential amino acids in a lacto-vegetarian diet. Option B suggests vitamin K, which is not directly related to enhancing red blood cell production. Option C mentions increasing dark yellow vegetables, which are sources of non-heme iron, but combining legumes and grains is more effective in addressing the protein needs of a lacto-vegetarian.
3. 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.
4. A client with a history of seizures is being discharged with a prescription for phenytoin (Dilantin). Which instruction should the nurse provide this client?
- A. Take the medication with meals
- B. Avoid alcohol while taking this medication
- C. Limit sodium intake
- D. Take the medication at bedtime
Correct answer: B
Rationale: The correct instruction is to advise the client to avoid alcohol while taking phenytoin. Alcohol can interact with phenytoin, making it less effective and leading to increased side effects. Taking the medication with meals (Choice A) may help reduce gastrointestinal upset but is not the most crucial instruction for this medication. Limiting sodium intake (Choice C) is not directly related to phenytoin therapy. Taking the medication at bedtime (Choice D) is not a standard instruction for phenytoin administration.
5. The nurse is performing a physical assessment of a male client who has chronic renal failure. Which assessment finding is most important for the nurse to report to the healthcare provider?
- A. Client reports difficulty breathing
- B. Client reports shortness of breath when lying flat
- C. Client reports swelling in the feet and ankles
- D. Client reports a metallic taste in the mouth
Correct answer: A
Rationale: In a client with chronic renal failure, difficulty breathing is the most critical finding to report. This symptom may indicate fluid overload or pulmonary edema, which can be life-threatening. Shortness of breath when lying flat (orthopnea) is also concerning but less urgent than difficulty breathing. Swelling in the feet and ankles (edema) is a common finding in renal failure but may not be as immediately critical as difficulty breathing. A metallic taste in the mouth is associated with uremia, a common complication of chronic renal failure, but it is not as urgent as respiratory distress.
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