Nursing Elites

1. Blood for arterial blood gas determinations is drawn from a client with pneumonia, and testing reveals a pH of 7.45, PCO2 of 30 mm Hg, and HCO3 of 19 mEq/L. The nurse interprets these results as indicative of:

• A. Compensated metabolic acidosis
• B. Compensated respiratory alkalosis
• C. Uncompensated metabolic alkalosis
• D. Uncompensated respiratory acidosis

Correct answer: B

Rationale: The correct answer is 'Compensated respiratory alkalosis.' In this case, the client's pH is within the normal range (7.35-7.45), indicating compensation. The low PCO2 (30 mm Hg) suggests respiratory alkalosis, while the low HCO3 (19 mEq/L) is also consistent with a compensatory response. Therefore, the client has a primary respiratory alkalosis that is being compensated for by metabolic acidosis. Choices A, C, and D are incorrect because they do not fit the pattern of the given blood gas values, which indicate respiratory alkalosis with metabolic compensation.

2. The healthcare provider is caring for a patient who is receiving an intravenous antibiotic. The patient has a serum drug trough of 1.5 mcg/mL. The normal trough for this drug is 1.7 mcg/mL to 2.2 mcg/mL. What will the healthcare provider expect the patient to experience?

• A. Inadequate drug effects
• B. Increased risk of superinfection
• C. Minimal adverse effects
• D. Slowed onset of action

Correct answer: A

Rationale: A serum drug trough level below the normal range (1.7 mcg/mL to 2.2 mcg/mL) indicates that the medication concentration is insufficient to provide therapeutic effects, leading to inadequate drug effects. A low trough level does not directly correlate with an increased risk of superinfection, minimal adverse effects, or a slowed onset of action, as these are more related to the drug's concentration within the therapeutic range.

3. A client is experiencing diarrhea. For which acid-base disorder should the nurse assess the client?

• A. Metabolic acidosis
• B. Metabolic alkalosis
• C. Respiratory acidosis
• D. Respiratory alkalosis

Correct answer: A

Rationale: When a client experiences diarrhea, the loss of bicarbonate-rich fluids from the body leads to a decrease in the bicarbonate levels in the blood, resulting in metabolic acidosis. Metabolic alkalosis (choice B) is characterized by an increase in bicarbonate levels, which is not typically associated with diarrhea. Respiratory acidosis (choice C) is caused by retention of carbon dioxide, while respiratory alkalosis (choice D) results from excessive exhalation of carbon dioxide, neither of which are directly related to diarrhea. Therefore, the correct answer is metabolic acidosis (choice A) in the context of diarrhea.

4. A client who is scheduled for cardiac catheterization to rule out coronary occlusion should be informed by the nurse that:

• A. The procedure is performed in a darkened room in the radiology department
• B. It is necessary to lie quietly on a hard x-ray table for about 4 hours
• C. The room is bright and well lit, and it is best to keep the eyes closed
• D. The client may have feelings of warmth or flushing during the procedure

Correct answer: D

Rationale: Before cardiac catheterization, the nurse should inform the client that the procedure is performed in a darkened room in the radiology department, not the operating room. The client should expect to lie still on an x-ray table for the duration of the procedure, not necessarily for about 4 hours. Keeping the eyes closed is not necessary as the room is usually dimly lit. The client may experience sensations of warmth or flushing during the procedure due to catheter passage and dye injection, making choice D the correct answer.

5. A client who was in a motor vehicle collision was admitted to the hospital, and the right knee was placed in skeletal traction. The nurse has documented this nursing diagnosis in the client's medical record: 'Potential for impairment of skin integrity related to immobility from traction.' Which nursing intervention is indicated based on this diagnosis statement?

• A. Release the traction every 4 hours to provide skin care.
• B. Turn the client for back care while suspending traction.
• C. Provide back and skin care while maintaining the traction.
• D. Give back care after the client is released from traction.

Correct answer: C

Rationale: The correct nursing intervention indicated based on the nursing diagnosis 'Potential for impairment of skin integrity related to immobility from traction' is to provide back and skin care while maintaining the traction. This intervention is crucial for maintaining the client's skin integrity and preventing potential complications. Releasing the traction every 4 hours (Choice A) may disrupt the treatment plan and compromise the effectiveness of traction. Turning the client for back care while suspending traction (Choice B) does not address the need for skin care while the client is in traction. Giving back care after the client is released from traction (Choice D) neglects the immediate need to prevent skin impairment while in traction. Therefore, providing back and skin care while maintaining the traction (Choice C) is the most appropriate intervention in this scenario.

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