HESI RN
HESI Medical Surgical Practice Exam
1. The client had a thyroidectomy 24 hours ago and reports experiencing numbness and tingling of the face. Which intervention should the nurse implement?
- A. Open and prepare the tracheostomy kit.
- B. Inspect the neck for an increase in swelling.
- C. Monitor for the presence of Chvostek's sign.
- D. Assess lung sounds for laryngeal stridor.
Correct answer: C
Rationale: The correct answer is C: Monitor for the presence of Chvostek's sign. Chvostek's sign is a clinical indicator of hypocalcemia, a common complication after thyroidectomy. Numbness and tingling around the face are associated with hypocalcemia due to potential damage to the parathyroid glands during surgery, leading to decreased calcium levels. Inspecting the neck for swelling (choice B) is important but does not directly address the presenting symptoms. Opening and preparing the tracheostomy kit (choice A) is not necessary based on the client's current symptoms. Assessing lung sounds for laryngeal stridor (choice D) is not directly related to the client's reported numbness and tingling of the face.
2. The patient will begin taking penicillin G procaine (Wycillin). The nurse notes that the solution is milky in color. What action will the nurse take?
- A. Call the pharmacist and report the milky color.
- B. Add normal saline to dilute the medication.
- C. Call the physician and report the milky appearance.
- D. Administer the medication as ordered by the physician.
Correct answer: D
Rationale: The correct answer is to administer the medication as ordered by the physician. Penicillin G procaine (Wycillin) is known to have a milky appearance, which is normal. The milky color should not raise concerns for the nurse as it is an expected characteristic of this medication. Calling the pharmacist (choice A) or the physician (choice C) unnecessarily would delay the administration of the medication. Adding normal saline to dilute the medication (choice B) is not appropriate and could alter the medication's effectiveness. Therefore, the nurse should proceed with administering the medication as prescribed without any further action based on its milky appearance.
3. A child who weighs 10 kg will begin taking oral trimethoprim-sulfamethoxazole (TMP-SMX). The liquid preparation contains 40 mg of TMP and 200 mg of SMX per 5 mL. The nurse determines that the child’s dose should be 8 mg of TMP and 40 mg of SMX/kg/day divided into two doses. Which order for this child is correct?
- A. 5 mL PO BID
- B. 5 mL PO daily
- C. 10 mL PO BID
- D. 10 mL PO daily
Correct answer: A
Rationale: The correct answer is A: '5 mL PO BID.' To calculate the child’s daily dose requirement, you multiply the child's weight (10 kg) by the prescribed dosage per kg, which is 8 mg for TMP and 40 mg for SMX. This results in a total daily requirement of 80 mg of TMP and 400 mg of SMX. To divide this into two doses, each dose should contain half of the total daily requirement, which is 40 mg TMP and 200 mg SMX. Since the liquid preparation contains 40 mg of TMP and 200 mg of SMX per 5 mL, the correct dose per administration is 5 mL. Therefore, 5 mL PO BID is the correct order. Choice B, '5 mL PO daily,' is incorrect as the total daily dose needs to be divided into two doses. Choices C and D, '10 mL PO BID' and '10 mL PO daily,' respectively, are incorrect as they do not align with the calculated dosage requirements based on the child's weight and the prescribed dosage per kg.
4. After pericardiocentesis for cardiac tamponade, for which signs should the nurse assess the client to determine if tamponade is recurring?
- A. Decreasing pulse
- B. Rising blood pressure
- C. Distant muffled heart sounds
- D. Falling central venous pressure (CVP)
Correct answer: C
Rationale: After pericardiocentesis for cardiac tamponade, the nurse should assess for distant muffled heart sounds that were noted before the procedure. If these sounds return, it could indicate recurring pericardial effusion and potential tamponade. Therefore, the correct answer is the return of distant muffled heart sounds (Option C). Decreasing pulse (Option A) and falling central venous pressure (Option D) are not specific signs of recurring tamponade. Rising blood pressure (Option B) is also not a typical sign of tamponade recurrence; in fact, hypotension is more commonly associated with tamponade.
5. A client is brought to the emergency department by a neighbor. The client is lethargic and has a fruity odor on the breath. The client’s arterial blood gas (ABG) results are pH 7.25, PCO2 34 mm Hg, PO2 86 mm Hg, HCO3 14 mEq/L. Which of the following acid-base disturbances does the nurse recognize in these results?
- A. Metabolic acidosis
- B. Metabolic alkalosis
- C. Respiratory acidosis
- D. Respiratory alkalosis
Correct answer: A
Rationale: The correct answer is 'Metabolic acidosis.' Metabolic acidosis is characterized by a low pH (<7.35) and a low bicarbonate level (HCO3 <22 mEq/L). In this case, the client's ABG results show a pH of 7.25 and an HCO3 level of 14 mEq/L, indicating metabolic acidosis. The PCO2 of 34 mm Hg is normal, ruling out respiratory acidosis or alkalosis. The PO2 of 86 mm Hg is also within the normal range and is not indicative of a respiratory problem. Therefore, the client is experiencing metabolic acidosis based on the ABG results provided.
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