HESI RN
HESI RN Medical Surgical Practice Exam
1. A client is vomiting. For which acid-base imbalance does the nurse assess the client?
- A. Metabolic acidosis
- B. Metabolic alkalosis
- C. Respiratory acidosis
- D. Respiratory alkalosis
Correct answer: B
Rationale: In a client who is vomiting, the loss of gastric fluid containing hydrochloric acid can lead to metabolic alkalosis. Metabolic alkalosis is caused by the loss of acids such as hydrochloric acid from the body. Therefore, in this scenario, the nurse should assess the client for metabolic alkalosis. Choices A, C, and D are incorrect because vomiting does not typically lead to metabolic acidosis, respiratory acidosis, or respiratory alkalosis.
2. A client is experiencing diarrhea. For which acid-base disorder should the nurse assess the client?
- A. Metabolic acidosis
- B. Metabolic alkalosis
- C. Respiratory acidosis
- D. Respiratory alkalosis
Correct answer: A
Rationale: When a client experiences diarrhea, the loss of bicarbonate-rich fluids from the body leads to a decrease in the bicarbonate levels in the blood, resulting in metabolic acidosis. Metabolic alkalosis (choice B) is characterized by an increase in bicarbonate levels, which is not typically associated with diarrhea. Respiratory acidosis (choice C) is caused by retention of carbon dioxide, while respiratory alkalosis (choice D) results from excessive exhalation of carbon dioxide, neither of which are directly related to diarrhea. Therefore, the correct answer is metabolic acidosis (choice A) in the context of diarrhea.
3. The client with chronic renal failure is being educated on dietary restrictions. Which of the following foods should the client avoid?
- A. Bananas.
- B. Oranges.
- C. Rice.
- D. Apples.
Correct answer: A
Rationale: The correct answer is A: Bananas. Bananas are high in potassium, and clients with chronic renal failure are often advised to follow a low-potassium diet to prevent hyperkalemia. Oranges and apples are also high in potassium and should be avoided by clients with renal issues. Rice, on the other hand, is low in potassium and is generally considered safe for individuals with chronic renal failure to consume in moderation.
4. Which client should the nurse recognize as most likely to experience sleep apnea?
- A. Middle-aged female who takes a diuretic nightly.
- B. Obese older male client with a short, thick neck.
- C. Adolescent female with a history of tonsillectomy.
- D. School-aged male with a history of hyperactivity disorder.
Correct answer: B
Rationale: The correct answer is B. Sleep apnea is characterized by pauses in breathing during sleep, often due to a collapsed or blocked airway. Obesity and having a short, thick neck are risk factors for sleep apnea because excess fat around the neck can obstruct the airway. Option A (middle-aged female who takes a diuretic nightly) does not present as a common risk factor for sleep apnea. Option C (adolescent female with a history of tonsillectomy) may have had tonsils removed, which could reduce the risk of sleep apnea. Option D (school-aged male with a history of hyperactivity disorder) is not directly associated with an increased risk of sleep apnea.
5. 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.
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