Nursing Elites

1. A client with a history of chronic kidney disease (CKD) is admitted with hyperkalemia. Which clinical finding is most concerning?

• A. Peaked T waves on the ECG
• B. Bradycardia
• C. Muscle weakness
• D. Decreased deep tendon reflexes

Correct answer: A

Rationale: Peaked T waves on the ECG are the most concerning finding in a client with hyperkalemia. Hyperkalemia can lead to serious cardiac complications, including arrhythmias and cardiac arrest. Peaked T waves are a classic ECG finding associated with hyperkalemia and indicate the need for immediate intervention. Bradycardia, muscle weakness, and decreased deep tendon reflexes can also be seen in hyperkalemia, but the presence of peaked T waves signifies a higher risk of cardiac events, making it the most concerning finding in this scenario.

2. 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.

3. A client with chronic kidney disease (CKD) is scheduled for hemodialysis. Which laboratory value should the nurse report to the healthcare provider before the procedure?

• A. Serum potassium of 5.5 mEq/L
• B. Hemoglobin of 10 g/dl
• C. Potassium of 6.0 mEq/L
• D. Blood glucose of 200 mg/dl

Correct answer: C

Rationale: The correct answer is C: Potassium of 6.0 mEq/L. A potassium level of 6.0 mEq/L is dangerously high in a client with CKD, and it should be reported before hemodialysis to prevent cardiac complications. High potassium levels can lead to life-threatening arrhythmias. Choices A, B, and D are not the most critical values to report before hemodialysis. While a serum potassium level of 5.5 mEq/L is slightly elevated, it is not as urgent as a level of 6.0 mEq/L in this context. Hemoglobin of 10 g/dl and blood glucose of 200 mg/dl are important parameters to monitor but are not as immediately concerning before hemodialysis compared to a high potassium level.

4. A nurse is preparing to administer a dose of digoxin (Lanoxin) to a client with heart failure. Which assessment finding requires immediate intervention?

• A. Apical pulse of 58 beats per minute
• B. Blood pressure of 110/70 mmHg
• C. Presence of a new murmur
• D. Respiratory rate of 18 breaths per minute

Correct answer: A

Rationale: An apical pulse of 58 beats per minute is concerning when administering digoxin because digoxin can further lower the heart rate, leading to bradycardia or heart block. Immediate intervention is required to prevent potential complications. A blood pressure of 110/70 mmHg is within normal range and does not require immediate intervention in this context. The presence of a new murmur may indicate valvular issues but does not directly relate to the administration of digoxin. A respiratory rate of 18 breaths per minute is also within normal limits and is not a priority concern when administering digoxin.

5. The nurse is caring for a client with a tracheostomy who has thick, tenacious secretions. Which assessment finding is most concerning?

• A. Crepitus around the tracheostomy site
• B. Dry and cracked tracheostomy site
• C. Yellowing of the skin around the tracheostomy site
• D. Mucous plugging of the tracheostomy tube

Correct answer: D

Rationale: Mucous plugging of the tracheostomy tube is the most concerning finding in a client with a tracheostomy and thick secretions. This can lead to airway obstruction, which requires immediate intervention to maintain a patent airway. Crepitus around the tracheostomy site may indicate subcutaneous emphysema but does not pose an immediate threat to the airway. A dry and cracked tracheostomy site may require interventions to promote healing but is not as urgent as mucous plugging. Yellowing of the skin around the tracheostomy site could indicate infection or impaired circulation, which should be addressed but does not pose the same immediate risk as airway obstruction.

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