A nurse is providing information about maintaining a special diet with a client who has irritable bowel syndrome. Which of the following information should the nurse include?

Choice A rationale:
Assessing the need for oral suction every 4 hours is essential in maintaining airway patency and preventing complications associated with excessive secretions. This is an appropriate action and does not require clarification.
Choice B rationale:
Checking the ventilator settings every 12 hours is necessary to ensure that the mechanical ventilation is providing adequate support for the client's respiratory needs. This prescription is appropriate and does not need clarification.
Choice C rationale:
Keeping the head of the client's bed elevated at 30° is important in preventing aspiration and ventilator-associated pneumonia. This position helps promote optimal lung expansion and improves oxygenation in ventilated clients.
Choice D rationale:
Performing oral hygiene using an alcohol-based oral rinse is not recommended for clients receiving mechanical ventilation. Alcohol-based products can be harmful if aspirated and may disrupt the normal oral flora, leading to complications. The nurse should use a non-alcohol-based oral rinse or foam swabs instead.

Choice A rationale:
A PaO2 value of 86 mm Hg is within the normal range (80-100 mm Hg) and does not indicate respiratory acidosis. PaO2 measures the partial pressure of oxygen in arterial blood.
Choice B rationale:
A pH of 7.4 is within the normal range (7.35-7.45) and does not indicate respiratory acidosis. The pH reflects the acidity or alkalinity of the blood.
Choice C rationale:
An HCO3 (bicarbonate) level of 16 mEq/L is within the normal range (22-28 mEq/L) and does not indicate respiratory acidosis. HCO3 is a measure of the metabolic component of the body's acid-base balance.
Choice D rationale:
This is the correct choice. A PaCO2 value of 58 mm Hg is elevated and indicates respiratory acidosis. PaCO2 measures the partial pressure of carbon dioxide in arterial blood, and an elevated value suggests the presence of excess carbon dioxide, leading to acidosis.