HESI RN
HESI 799 RN Exit Exam Quizlet
1. A client with type 1 diabetes is admitted with diabetic ketoacidosis (DKA). Which laboratory value is most concerning?
- A. Serum glucose of 300 mg/dl
- B. Serum bicarbonate of 18 mEq/L
- C. Serum potassium of 5.5 mEq/L
- D. Serum sodium of 135 mEq/L
Correct answer: C
Rationale: A serum potassium level of 5.5 mEq/L is concerning in a client with DKA as it may indicate worsening hyperkalemia, requiring immediate intervention. Elevated serum potassium levels can lead to life-threatening cardiac arrhythmias. While elevated glucose and low bicarbonate are characteristic of DKA, hyperkalemia poses a higher immediate risk. Serum sodium within the normal range is not typically a primary concern in DKA.
2. In a client with heart failure receiving digoxin (Lanoxin) and furosemide (Lasix), which laboratory value requires immediate intervention?
- A. Serum potassium of 4.0 mEq/L
- B. Blood glucose of 200 mg/dl
- C. Serum creatinine of 1.5 mg/dl
- D. Serum potassium of 3.2 mEq/L
Correct answer: D
Rationale: A serum potassium level of 3.2 mEq/L is low and concerning in a client receiving digoxin and furosemide. Hypokalemia increases the risk of digoxin toxicity, leading to life-threatening arrhythmias. Therefore, immediate intervention is necessary to prevent complications. The other options, serum potassium of 4.0 mEq/L, blood glucose of 200 mg/dl, and serum creatinine of 1.5 mg/dl, are within normal limits and do not pose immediate risks to the client in this scenario.
3. In assessing a client 48 hours following a fracture, the nurse observes ecchymosis at the fracture site and recognizes that hematoma formation at the bone fragment site has occurred. What action should the nurse implement?
- A. Document the extent of the bruising in the medical record.
- B. Apply a cold compress to the area.
- C. Elevate the affected limb.
- D. Notify the healthcare provider.
Correct answer: A
Rationale: After observing ecchymosis at the fracture site, indicating hematoma formation, the nurse's priority is to document the extent of the bruising in the medical record. This documentation helps track the client's condition, aids in treatment planning, and serves as a baseline for monitoring changes. Applying a cold compress (choice B) may be contraindicated due to the risk of vasoconstriction and potential tissue damage. Elevating the affected limb (choice C) can be beneficial for reducing swelling in some cases, but documenting the bruising is the immediate concern. Notifying the healthcare provider (choice D) is not necessary at this stage unless there are other concerning symptoms or complications beyond the hematoma formation.
4. A client with end-stage renal disease (ESRD) is scheduled for hemodialysis. Which clinical finding requires immediate intervention?
- A. Fever of 100.4°F
- B. Heart rate of 110 beats per minute
- C. Blood pressure of 140/90 mmHg
- D. Respiratory rate of 24 breaths per minute
Correct answer: A
Rationale: A fever of 100.4°F is a clinical finding that requires immediate intervention in a client with ESRD scheduled for hemodialysis. Fever may indicate an underlying infection, which can be severe in individuals with compromised renal function. Prompt assessment and treatment are essential to prevent worsening of the infection and potential complications. Heart rate, blood pressure, and respiratory rate are also important parameters to monitor in clients with ESRD, but in this scenario, the fever takes precedence due to its potential to indicate a critical condition that requires urgent attention.
5. A client with chronic kidney disease (CKD) is admitted with hyperkalemia. Which laboratory value requires immediate intervention?
- A. Serum potassium of 6.5 mEq/L
- B. Serum sodium of 135 mEq/L
- C. Serum creatinine of 2.0 mg/dL
- D. Blood glucose of 150 mg/dL
Correct answer: A
Rationale: A serum potassium level of 6.5 mEq/L is most concerning in a client with CKD as it indicates severe hyperkalemia, requiring immediate intervention. Hyperkalemia can lead to life-threatening cardiac arrhythmias. Serum sodium levels within the normal range (135 mEq/L) are not immediately concerning. Serum creatinine of 2.0 mg/dL may indicate impaired kidney function but does not require immediate intervention for hyperkalemia. Blood glucose of 150 mg/dL is within normal limits and does not directly correlate with hyperkalemia in this scenario.
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