HESI RN
HESI 799 RN Exit Exam Quizlet
1. A client with type 1 diabetes is admitted with diabetic ketoacidosis (DKA). Which clinical finding requires immediate intervention?
- A. Serum glucose of 300 mg/dL
- B. Serum potassium of 5.5 mEq/L
- C. Serum bicarbonate of 18 mEq/L
- D. Positive urine ketones
Correct answer: C
Rationale: A serum bicarbonate level of 18 mEq/L indicates metabolic acidosis in a client with DKA, requiring immediate intervention. In DKA, the body produces excess ketones, leading to metabolic acidosis, which is reflected by a low serum bicarbonate level. Correcting the low serum bicarbonate is crucial to normalize the metabolic acidosis and improve the client's condition. While elevated serum glucose (choice A) and urine ketones (choice D) are characteristic of DKA, addressing the metabolic acidosis takes precedence. Serum potassium (choice B) levels may also need monitoring and management, but correcting the acidosis is the priority to prevent complications like cardiovascular collapse.
2. A client with chronic kidney disease (CKD) is admitted with hyperkalemia. Which assessment finding is most concerning?
- A. Bradycardia
- B. Muscle weakness
- C. Peaked T waves on the ECG
- D. Decreased deep tendon reflexes
Correct answer: C
Rationale: The correct answer is C: Peaked T waves on the ECG. In hyperkalemia, elevated potassium levels can affect the heart's electrical activity, leading to changes on the ECG such as peaked T waves. This finding is concerning as it can progress to serious cardiac arrhythmias, including ventricular tachycardia and fibrillation. Bradycardia (choice A) and decreased deep tendon reflexes (choice D) are not typically associated with hyperkalemia. While muscle weakness (choice B) can occur in hyperkalemia due to its effect on neuromuscular function, the most concerning assessment finding indicating the need for immediate intervention in this scenario is peaked T waves on the ECG.
3. A preschooler with constipation needs to increase fiber intake. Which snack suggestion should the nurse provide?
- A. Oatmeal cookies
- B. Cheese sticks
- C. Yogurt
- D. Apple slices
Correct answer: A
Rationale: Oatmeal cookies are the best snack suggestion for a preschooler with constipation needing to increase fiber intake. Oatmeal is high in fiber, which helps relieve constipation. Cheese sticks, yogurt, and apple slices are not as high in fiber content as oatmeal and may not be as effective in addressing the constipation issue in this scenario.
4. An older male client with a history of diabetes mellitus, chronic gout, and osteoarthritis comes to the clinic with a bag of medication bottles. Which intervention should the nurse implement first?
- A. Identify pills in the bag
- B. Review the client's medication schedule
- C. Assess the client's symptoms
- D. Educate the client about proper medication usage
Correct answer: A
Rationale: The correct answer is to identify pills in the bag first. This is essential to ensure the client is taking the correct medications and to prevent any potential medication errors. Reviewing the client's medication schedule (choice B) can come after identifying the pills to cross-reference the medications. Assessing the client's symptoms (choice C) is important but should follow identifying the medications. Educating the client about proper medication usage (choice D) is crucial but should be done after confirming the medications in the bag.
5. A client is admitted with a possible myocardial infarction. Which laboratory test result is most indicative of a myocardial infarction?
- A. Serum creatine kinase (CK)
- B. Serum troponin
- C. Serum myoglobin
- D. C-reactive protein (CRP)
Correct answer: B
Rationale: Serum troponin is the most specific and sensitive indicator of myocardial infarction. Troponin levels rise within 3-4 hours after myocardial damage, peak at 10-24 hours, and remain elevated for up to 10-14 days. Creatine kinase (CK) and myoglobin can also be elevated in myocardial infarction, but troponin is more specific to cardiac muscle damage. C-reactive protein (CRP) is a marker of inflammation and is not specific for myocardial infarction.
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