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. A client who underwent preadmission testing 1 week before surgery had blood drawn for several serum laboratory studies. Which abnormal laboratory results should the nurse report to the surgeon’s office? Select all that apply.
- A. Hematocrit 30%
- B. Sodium 141 mEq/L
- C. Hemoglobin 8.9 g/dL
- D. Platelets 210,000 cells/mm3
Correct answer: C
Rationale: The correct answer is C. Hemoglobin level of 8.9 g/dL is below the normal range, indicating anemia. Anemia can affect the body's ability to carry oxygen, impacting surgical outcomes. Hematocrit level is an indirect measure of red blood cells, which also reveals anemia when low. Sodium level of 141 mEq/L and platelet count of 210,000 cells/mm3 are within normal ranges and do not require immediate reporting. Abnormal sodium levels can lead to various issues, but in this scenario, it is not a concern for surgical readiness. Platelet count is vital for blood clotting, and a count of 210,000 cells/mm3 is considered normal, so it does not need urgent attention.
3. A client is recovering from a closed percutaneous kidney biopsy and reports increased pain from 3 to 10 on a scale of 0 to 10. Which action should the nurse take first?
- A. Reposition the client on the operative side.
- B. Administer the prescribed opioid analgesic.
- C. Assess the pulse rate and blood pressure.
- D. Examine the color of the client’s urine.
Correct answer: C
Rationale: An abrupt increase in pain following a percutaneous kidney biopsy may indicate internal hemorrhage. Assessing the client's pulse rate and blood pressure is crucial as changes in vital signs can be indicative of hemorrhage. This assessment is essential in determining the client's hemodynamic status and the need for immediate intervention. Repositioning the client, administering pain medication, or checking urine color are not the priority actions in this situation and may delay necessary interventions for potential hemorrhage.
4. Which of the following is a common cause of acute kidney injury?
- A. Hypertension
- B. Dehydration
- C. Infection
- D. Hypotension
Correct answer: C
Rationale: Infection is a common cause of acute kidney injury because when the body fights an infection, it activates the immune response, leading to inflammation. This inflammatory response can affect the kidneys and impair their function. While hypertension (choice A) is a risk factor for chronic kidney disease, it is not a direct cause of acute kidney injury. Dehydration (choice B) can lead to prerenal acute kidney injury due to decreased blood flow to the kidneys, but infection is a more common cause of acute kidney injury. Hypotension (choice D) can contribute to prerenal acute kidney injury, but it is not a direct cause like infection.
5. A client is unsure of the decision to undergo peritoneal dialysis (PD) and wishes to discuss the advantages of this treatment with the nurse. Which statements by the nurse are accurate regarding PD? (Select all that apply.)
- A. You will not need vascular access to perform PD.
- B. There is less restriction of protein and fluids.
- C. You have flexible scheduling for the exchanges.
- D. All of the above
Correct answer: D
Rationale: The correct answer is D, as all the statements are accurate advantages of peritoneal dialysis (PD). Peritoneal dialysis does not require vascular access, offers less restriction on protein and fluids, and provides flexibility in scheduling for the exchanges. Choice A is correct because one of the advantages of PD is not needing vascular access, which is required in hemodialysis. Choice B is correct because PD allows for less dietary restriction compared to hemodialysis. Choice C is correct because PD allows for flexible scheduling of exchanges, providing more independence to the individual undergoing treatment.
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