Nursing Elites

1. The nurse is caring for a client with acute respiratory distress syndrome (ARDS) who is receiving mechanical ventilation. Which assessment finding requires immediate intervention?

• A. Oxygen saturation of 90%
• B. Respiratory rate of 28 breaths per minute
• C. Tidal volume of 300 ml
• D. Blood pressure of 110/70 mmHg

Correct answer: C

Rationale: The correct answer is C. A tidal volume of 300 ml is concerning in a client with ARDS on mechanical ventilation because it indicates hypoventilation, which can lead to inadequate gas exchange and worsening respiratory status. This finding requires immediate intervention to optimize ventilation and oxygenation. Options A, B, and D are not as critical in this scenario. An oxygen saturation of 90% may be acceptable depending on the client's baseline condition and the target range set by the healthcare provider. A respiratory rate of 28 breaths per minute is slightly elevated but may not be immediately alarming. A blood pressure of 110/70 mmHg is within normal limits and does not require urgent intervention.

2. A client with end-stage renal disease (ESRD) is scheduled for hemodialysis. Which laboratory value should be reported to the healthcare provider before the procedure?

• A. Serum creatinine of 2.5 mg/dL
• B. Serum potassium of 6.5 mEq/L
• C. Serum calcium of 8 mg/dL
• D. Serum bicarbonate of 24 mEq/L

Correct answer: B

Rationale: The correct answer is B. A serum potassium level of 6.5 mEq/L is dangerously high and should be reported before hemodialysis to prevent cardiac complications. High potassium levels can lead to life-threatening arrhythmias. Serum creatinine (Choice A) is elevated in renal dysfunction but not the most critical value to report before hemodialysis. Serum calcium (Choice C) and serum bicarbonate (Choice D) levels are within normal limits and are not immediate concerns before hemodialysis.

3. A client with atrial fibrillation is receiving digoxin (Lanoxin) and warfarin (Coumadin). Which assessment finding should the nurse report to the healthcare provider immediately?

• A. Heart rate of 58 beats per minute
• B. Presence of a new murmur
• C. INR of 2.5
• D. Blood pressure of 110/70 mmHg

Correct answer: B

Rationale: The correct answer is B. The presence of a new murmur in a client with atrial fibrillation may indicate a valvular problem or other complications, requiring immediate reporting. A heart rate of 58 beats per minute is within the normal range for some individuals with atrial fibrillation, so it is not an immediate concern. An INR of 2.5 is within the therapeutic range for a client on warfarin, indicating appropriate anticoagulation. A blood pressure of 110/70 mmHg is also within the normal range and does not pose an immediate threat to the client's health.

4. A client with a history of angina pectoris is prescribed sublingual nitroglycerin. Which client statement indicates that further teaching is needed?

• A. ‘I should take the nitroglycerin with a full glass of water.’
• B. ‘I should take the nitroglycerin as soon as I feel chest pain.’
• C. ‘I can take up to three doses of nitroglycerin if needed.’
• D. ‘I should call 911 if my chest pain does not improve after the first dose.’

Correct answer: A

Rationale: The correct answer is A. Sublingual nitroglycerin should not be taken with water, as it needs to dissolve under the tongue to be effective. Option B is correct as the client should take nitroglycerin as soon as they feel chest pain. Option C is correct as up to three doses can be taken if needed. Option D is correct as the client should seek emergency help if chest pain does not improve after the first dose.

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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