HESI RN
HESI Fundamentals
1. The healthcare provider attaches a pulse oximeter to a client's fingers and obtains an oxygen saturation reading of 91%. Which assessment finding most likely contributes to this reading?
- A. BP 142/88 mmHg
- B. 2+ edema of fingers and hands
- C. Radial pulse volume is +3
- D. Capillary refill time is 2 seconds
Correct answer: B
Rationale: Edema in the fingers and hands can impede the proper functioning of the pulse oximeter, leading to a falsely low oxygen saturation reading. Edema alters the transmission of light through the tissues, affecting the accuracy of the measurement. Therefore, the presence of edema in the fingers and hands is the most likely factor contributing to the low oxygen saturation reading of 91%.
2. A client with hyperthyroidism is experiencing palpitations. What intervention should the nurse implement?
- A. Encourage the client to rest and limit activity.
- B. Administer a beta-blocker to reduce heart rate.
- C. Encourage the client to drink cool fluids.
- D. Provide the client with a cool environment.
Correct answer: B
Rationale: In clients with hyperthyroidism experiencing palpitations, administering a beta-blocker is the appropriate intervention. Beta-blockers help reduce heart rate and control symptoms in hyperthyroidism. Encouraging rest (Choice A) may be helpful but does not directly address the palpitations. Drinking cool fluids (Choice C) and providing a cool environment (Choice D) are more focused on temperature regulation and comfort, which are not the primary interventions for palpitations in hyperthyroidism.
3. A client with chronic kidney disease (CKD) is scheduled for a renal biopsy. Which laboratory value is most concerning?
- A. Serum potassium of 5.5 mEq/L
- B. Serum creatinine of 1.5 mg/dl
- C. Serum creatinine of 2.5 mg/dl
- D. White blood cell count of 8,000/mm3
Correct answer: C
Rationale: A serum creatinine level of 2.5 mg/dl is the most concerning laboratory value in a client with chronic kidney disease scheduled for a renal biopsy. An elevated serum creatinine level indicates impaired kidney function, which is critical information before performing a renal biopsy. Option A (Serum potassium of 5.5 mEq/L) may be concerning for hyperkalemia but is not directly related to the renal biopsy procedure. Option B (Serum creatinine of 1.5 mg/dl) is within normal limits, suggesting relatively normal kidney function. Option D (White blood cell count of 8,000/mm3) is within the normal range and not directly related to the renal biopsy procedure or CKD management.
4. A client who is 12-hours post-op following a left hip replacement has an indwelling urinary catheter. The nurse determines that the client's urinary output is 60 ml in the past 3 hours. What action should the nurse take first?
- A. Assess the client's vital signs
- B. Irrigate the catheter with 30 ml of sterile normal saline
- C. Notify the healthcare provider
- D. Replace the catheter with a larger size
Correct answer: A
Rationale: In a client post-op with low urinary output, the first action the nurse should take is to assess the client's vital signs. Vital signs can provide valuable information about the client's overall condition, fluid status, and potential complications. Assessing the vital signs can help the nurse to determine if the low urine output is indicative of a larger issue that needs immediate attention. Irrigating the catheter with normal saline may be necessary but should not be the first action without assessing the client. Notifying the healthcare provider should follow assessment if there are concerns. Replacing the catheter with a larger size is not indicated solely based on low urinary output and should not be the first action taken.
5. A client with diabetes mellitus is being educated on the signs and symptoms of hypoglycemia. Which of the following symptoms should the client be instructed to report immediately?
- A. Shakiness
- B. Sweating
- C. Confusion
- D. Increased thirst
Correct answer: C
Rationale: Confusion is a critical symptom of hypoglycemia that indicates the brain is not receiving enough glucose, potentially leading to serious complications like unconsciousness or seizures. Immediate reporting of confusion is essential for prompt intervention to prevent worsening of hypoglycemia. Shakiness and sweating are early warning signs of hypoglycemia but may not always require immediate intervention. Increased thirst is a symptom commonly associated with hyperglycemia rather than hypoglycemia.