Orders were written for a client to be weaned off of total parenteral nutrition (TPN) and started on a low-residue diet. The TPN solution has been infusing at a continuous rate of 90 ml/hr for three weeks. Which of the following orders should the nurse anticipate next?

Decrease the TPN rate to 60 ml/hr

Replace TPN infusion with an intravenous dextrose solution

Begin infusion of 0.9% normal saline at 30 ml/hr

Discontinue TPN infusion

Answer and Explanation

The Correct Answer is B

A. Decrease the TPN rate to 60 ml/hr: Gradually decreasing the TPN rate is a common practice, but it is typically done in conjunction with transitioning to another form of nutrition, not as a standalone order.
B. Replace TPN infusion with an intravenous dextrose solution: This is the correct choice. When weaning off TPN, it is important to prevent hypoglycemia by replacing the TPN with a dextrose solution to maintain blood glucose levels while transitioning to oral or enteral feeding.
C. Begin infusion of 0.9% normal saline at 30 ml/hr: While saline may be used for hydration, it does not address the need to manage blood glucose levels during the transition from TPN.
D. Discontinue TPN infusion: Discontinuing TPN abruptly can lead to complications such as hypoglycemia. It is important to gradually taper off TPN while replacing it with a dextrose solution.

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Correct Answer is C

Explanation

A. Abdomen soft, surgical dressing has scant amount of old drainage: A soft abdomen and minimal old drainage from the surgical dressing are expected findings postoperatively. They do not indicate an immediate concern that requires prompt action.
B. Client ambulating with minimal assistance, complaints of occasional nausea: Ambulation and occasional nausea are common and generally expected postoperatively. These findings do not require urgent collaboration with the healthcare provider.
C. Crackles bilaterally in bases of lungs, has incisional pain: Crackles in the lungs can indicate fluid accumulation or atelectasis, which may lead to pneumonia or other respiratory complications. This finding, especially combined with recent surgery, requires prompt evaluation and intervention.
D. Temperature 99.4°F (37.4°C), pulse 100 bpm, bowel sounds present: A slightly elevated temperature and increased pulse are common after surgery. The presence of bowel sounds is a positive sign indicating the return of gastrointestinal function. These findings are not immediately concerning.

A. Kidney conservation of bicarbonate and excretion of hydrogen ions B. Deep, rapid respirations to increase CO2 excretion C. Respiratory hypoventilation to retain CO2 and kidney excretion of bicarbonate D. Shifting of bicarbonate into cells in exchange for chloride

Correct Answer is C

Explanation

A. Kidney conservation of bicarbonate and excretion of hydrogen ions: This option is not correct for metabolic alkalosis. In metabolic alkalosis, the kidneys would typically excrete bicarbonate rather than conserve it.
B. Deep, rapid respirations to increase CO2 excretion: This is incorrect because deep, rapid respirations are more associated with compensating for metabolic acidosis by increasing CO2 excretion. In metabolic alkalosis, the body attempts to retain CO2.
C. Respiratory hypoventilation to retain CO2 and kidney excretion of bicarbonate: This is the correct choice. In metabolic alkalosis, the body compensates by reducing respiration rate (hypoventilation) to retain CO2, which helps to counteract the elevated pH. Additionally, the kidneys may excrete bicarbonate to balance the pH.
D. Shifting of bicarbonate into cells in exchange for chloride: This mechanism is more related to respiratory alkalosis rather than metabolic alkalosis. In metabolic alkalosis, the primary compensatory mechanisms involve changes in respiratory rate and renal bicarbonate excretion.

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Orders were written for a client to be weaned off of total parenteral nutrition (TPN) and started on a low-residue diet. The TPN solution has been infusing at a continuous rate of 90 ml/hr for three weeks. Which of the following orders should the nurse anticipate next?

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Correct Answer is C

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