HESI RN
HESI 799 RN Exit Exam
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. The nurse is assessing a client with left-sided heart failure. Which laboratory value is most concerning?
- A. Serum creatinine of 1.5 mg/dL
- B. Serum sodium of 136 mEq/L
- C. Serum potassium of 5.5 mEq/L
- D. Hemoglobin of 12 g/dL
Correct answer: C
Rationale: A serum potassium level of 5.5 mEq/L is most concerning in a client with left-sided heart failure as it indicates hyperkalemia, requiring immediate intervention. Hyperkalemia can lead to life-threatening cardiac arrhythmias, which can exacerbate heart failure. Serum creatinine of 1.5 mg/dL is slightly elevated but not as immediately concerning as hyperkalemia. Serum sodium of 136 mEq/L is within the normal range. Hemoglobin of 12 g/dL is also within the normal range and not directly related to the client's left-sided heart failure.
3. The nurse is preparing to administer an intramuscular injection to a client with muscle wasting in the gluteal region. What is the most appropriate site for the injection?
- A. Dorsogluteal site
- B. Ventrogluteal site
- C. Deltoid site
- D. Vastus lateralis site
Correct answer: D
Rationale: The vastus lateralis site is the most appropriate for an IM injection in a client with muscle wasting in the gluteal region. Administering the injection in the vastus lateralis ensures effective medication delivery due to muscle wasting in the gluteal region, preventing potential complications associated with the dorsogluteal or ventrogluteal sites, which may not be suitable in this specific client case. The deltoid site is mainly used for smaller volumes of medication and may not be ideal for this scenario.
4. A client with heart failure is prescribed furosemide (Lasix). Which assessment finding requires immediate intervention?
- A. Heart rate of 60 beats per minute
- B. Blood pressure of 100/60 mmHg
- C. Crackles in the lungs
- D. Presence of a new murmur
Correct answer: C
Rationale: The correct answer is C. Crackles in the lungs indicate fluid overload, a common issue in heart failure patients. Immediate intervention is necessary to prevent worsening heart failure symptoms and potential complications. A heart rate of 60 beats per minute and a blood pressure of 100/60 mmHg are within normal ranges for many individuals and do not typically require immediate intervention in this context. The presence of a new murmur may be important to monitor but is not the priority when crackles in the lungs suggest fluid overload.
5. A client with a history of atrial fibrillation is receiving warfarin (Coumadin). Which laboratory value should the nurse monitor closely?
- A. International Normalized Ratio (INR)
- B. Prothrombin time (PT)
- C. Serum sodium level
- D. Hemoglobin level of 12 g/dl
Correct answer: A
Rationale: The correct answer is A: International Normalized Ratio (INR). The INR should be closely monitored in a client receiving warfarin (Coumadin) to assess the effectiveness and safety of anticoagulation therapy. Monitoring the INR helps ensure that the client is within the therapeutic range to prevent both bleeding and clotting events. Choices B, C, and D are incorrect because while PT is used to monitor warfarin therapy, INR is a more precise indicator of therapeutic levels. Serum sodium level and hemoglobin level are not directly related to monitoring warfarin therapy.
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