HESI RN
HESI Medical Surgical Exam
1. A client receives a prescription for 1 liter of lactated Ringer's intravenously to be infused over 6 hours. How many mL/hr should the nurse program the infusion pump to deliver? (Enter numerical value only. If rounding is needed, round to the nearest whole number.)
- A. 167 mL/hr
- B. 200 mL/hr
- C. 83 mL/hr
- D. 111 mL/hr
Correct answer: A
Rationale: The correct infusion rate is 167 mL/hr. This is calculated by dividing the total volume (1000 mL) by the total time (6 hours), resulting in 166.67 mL/hr, which should be rounded to the nearest whole number as 167 mL/hr. This calculation ensures a steady infusion rate over the specified time frame. Choices B, C, and D are incorrect as they do not accurately reflect the correct calculation based on the volume and time provided in the prescription.
2. What is the most common cause of coronary artery disease?
- A. Atherosclerosis.
- B. Hyperlipidemia.
- C. Diabetes.
- D. Smoking.
Correct answer: A
Rationale: The correct answer is Atherosclerosis. It is the primary cause of coronary artery disease, as it involves the buildup of plaque in the arteries, restricting blood flow to the heart. Hyperlipidemia (choice B) contributes to atherosclerosis by increasing cholesterol levels in the blood but is not the direct cause of coronary artery disease. Diabetes (choice C) can accelerate atherosclerosis due to high blood sugar levels, but it is not the most common cause. Smoking (choice D) is a significant risk factor for developing coronary artery disease but is not the primary cause.
3. A client with functional urinary incontinence is being taught by a nurse. Which statement should the nurse include in this client’s teaching?
- A. Clean around your catheter daily with soap and water.
- B. Wash the vaginal weights with a 10% bleach solution after each use.
- C. Informing about available operations to repair your bladder.
- D. Buy slacks with elastic waistbands that are easy to pull down.
Correct answer: D
Rationale: Functional urinary incontinence is not related to bladder issues but rather to difficulties with ambulation or accessing the toilet. The goal is to help the client manage clothing independently. Elastic waistband slacks that are easy to pull down facilitate timely access to the toilet. Choices A and B are unrelated and not applicable to functional urinary incontinence. Choice C is incorrect as surgeries to repair the bladder are not indicated for functional urinary incontinence.
4. How can a nurse best help a client undergoing a bone marrow aspiration and biopsy, along with two upset family members, manage anxiety during the procedure?
- A. Allow the client's family to stay for emotional support.
- B. Accompany the client silently.
- C. Encourage the client to take slow, deep breaths to promote relaxation.
- D. Provide the client an opportunity to verbalize emotions.
Correct answer: C
Rationale: Encouraging the client to take slow, deep breaths is an effective way for the nurse to help the client manage anxiety during the bone marrow aspiration and biopsy procedure. Slow, deep breathing can promote relaxation and help reduce anxiety levels. Choice A, allowing the client's family to stay for emotional support, may provide comfort but does not address a direct intervention to help manage anxiety. Choice B, staying with the client silently, may not actively help the client address their anxiety. Choice D, allowing the client to express feelings, is important but may not directly address anxiety management during the procedure.
5. The healthcare provider prescribes diagnostic tests for a client with pneumonia identified on a chest X-ray. Which diagnostic test should the nurse review for implementation to guide the most therapeutic treatment of pneumonia?
- A. Sputum culture and sensitivity
- B. Blood cultures
- C. Arterial blood gases (ABG)
- D. Computerized tomography (CT) of the chest
Correct answer: A
Rationale: Sputum culture and sensitivity is the most appropriate diagnostic test for pneumonia as it helps in identifying the causative organism, which is crucial for guiding the selection of the most effective antibiotic therapy. Blood cultures (choice B) are more useful in identifying systemic infections rather than pneumonia specifically. Arterial blood gases (ABG) (choice C) are helpful in assessing oxygenation but do not directly aid in identifying the causative organism. Computerized tomography (CT) of the chest (choice D) is useful for evaluating structural abnormalities in the lungs but is not the initial test of choice for diagnosing pneumonia.
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