HESI RN
HESI Medical Surgical Specialty Exam
1. 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.
2. What is the priority intervention for a patient with a suspected myocardial infarction (MI)?
- A. Administering oxygen.
- B. Administering nitroglycerin.
- C. Administering aspirin.
- D. Administering morphine.
Correct answer: A
Rationale: Administering oxygen is the priority intervention for a patient with a suspected myocardial infarction to improve oxygenation. Oxygen helps ensure an adequate oxygen supply to the heart muscle, reducing the workload on the heart. Nitroglycerin and aspirin are important interventions in the treatment of MI; however, oxygen administration takes precedence to ensure adequate oxygenation. Morphine may be considered for pain relief, but it is not the initial priority in the treatment of a suspected MI.
3. Which of the following is the best indicator of fluid balance in a patient with heart failure?
- A. Daily weight measurements.
- B. Monitoring intake and output.
- C. Assessing skin turgor.
- D. Checking for peripheral edema.
Correct answer: A
Rationale: Daily weight measurements are the best indicator of fluid balance in a patient with heart failure. Changes in weight reflect fluid retention or loss more accurately than other methods. Monitoring intake and output (choice B) is essential but may not provide a comprehensive picture of fluid status. Skin turgor (choice C) and checking for peripheral edema (choice D) are more indicative of dehydration and fluid overload, respectively, rather than overall fluid balance.
4. A client with stress incontinence is being taught about pelvic muscle exercises. Which statements should be included by the nurse? (Select all that apply.)
- A. Starting and stopping the urine stream involves using pelvic muscles.
- B. Tighten pelvic muscles for a slow count of 10 and then relax for a slow count of 10.
- C. Pelvic muscle exercises can be performed in various positions: lying down, sitting up, and standing.
- D. A & B
Correct answer: D
Rationale: The correct statements to include when teaching a client with stress incontinence about pelvic muscle exercises are that starting and stopping the urine stream involve using pelvic muscles and that tightening pelvic muscles for a slow count of 10 and then relaxing for a slow count of 10 can help strengthen them. It is essential to highlight that pelvic muscle exercises can be performed in various positions, including lying down, sitting up, and standing. This variety in positions helps engage the muscles effectively. Performing these exercises 15 times in each position can aid in strengthening the pelvic floor muscles. Consistent exercise over several weeks typically leads to improved control over urine leakage. Choice C is incorrect because pelvic muscle exercises can be performed in different positions and are not limited to sitting upright with feet on the floor.
5. A client has undergone renal angiography via the right femoral artery. The nurse determines that the client is experiencing a complication of the procedure upon noting:
- A. Urine output of 40 mL/hr
- B. Blood pressure of 118/76 mm Hg
- C. Respiratory rate of 18 breaths/min
- D. Pallor and coolness of the right leg
Correct answer: D
Rationale: Pallor and coolness of the right leg indicate a potential vascular complication following renal angiography, such as hemorrhage, thrombosis, or embolism. These signs suggest impaired circulation in the affected limb. Urine output, blood pressure, and respiratory rate are not typically associated with complications of renal angiography. Complications of this procedure mainly involve allergic reactions to the dye, dye-induced renal damage, and various vascular issues.
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