A client is recovering from the surgical removal of glass in the right eye.
Which intervention should the nurse implement immediately following the procedure?

Choice A rationale:

Carbon dioxide is primarily eliminated through the lungs, not the kidneys. While the kidneys do play a role in acid-base balance, their primary mechanism for regulating pH is through the excretion or retention of bicarbonate ions (HCO3-), not carbon dioxide itself.

The kidneys' ability to compensate for respiratory acidosis is limited. In cases of severe respiratory acidosis, the kidneys may not be able to adequately compensate, leading to a further decrease in blood pH.

Choice B rationale:

Hyperventilation would actually decrease carbon dioxide levels in the blood, not increase them. Hyperventilation is a state of rapid, deep breathing that leads to increased exhalation of carbon dioxide. This can result in respiratory alkalosis, which is the opposite of respiratory acidosis.

Choice D rationale:

Low blood oxygen levels (hypoxia) can stimulate respiration, but this would not directly cause respiratory acidosis. In fact, hypoxia can sometimes lead to respiratory alkalosis due to hyperventilation.

Respiratory acidosis is primarily caused by impaired carbon dioxide elimination, not decreased oxygen levels.

Choice C rationale:

High levels of carbon dioxide in the blood (hypercapnia) are the hallmark feature of respiratory acidosis. This can occur due to a variety of factors that impair ventilation, such as:

Chronic obstructive pulmonary disease (COPD) Asthma

Pneumonia Sleep apnea

Neuromuscular disorders that affect breathing Drug overdose (e.g., opioids)

The accumulation of carbon dioxide in the blood leads to a decrease in blood pH, which can have a range of negative effects on the body's organ systems.

Choice A rationale:

While ABGs can provide valuable information about a patient's respiratory status, they are not routinely required prior to postural drainage in patients with COPD.

ABGs might be considered if the patient is experiencing acute respiratory distress or if there are concerns about their oxygenation or ventilation status.

However, in the absence of such concerns, obtaining ABGs would not be necessary and could potentially cause discomfort or anxiety for the patient.

Choice C rationale:

Performing postural drainage immediately after meals is not recommended for patients with COPD.

This is because eating can cause a feeling of fullness in the stomach, which can make it difficult for the patient to breathe deeply and effectively during the procedure.

Additionally, there is a risk of aspiration if the patient were to vomit during or after postural drainage.

It is generally recommended to perform postural drainage at least 1-2 hours after meals to reduce these risks.

Choice D rationale:

Instructing the patient to breathe shallow and fast is not appropriate for postural drainage.

The goal of postural drainage is to help the patient mobilize and expectorate secretions from the lungs.

This is best achieved by encouraging the patient to breathe deeply and slowly, which helps to open up the airways and promote mucus clearance.

Shallow, rapid breathing can actually make it more difficult to clear secretions and can lead to increased shortness of breath.

Choice B rationale:

Explaining that the patient may be placed in five positions is the most appropriate approach for postural drainage in a patient with COPD.

This is because different positions help to drain different areas of the lungs. The five positions typically used for postural drainage are:

Head down position (to drain the lower lobes)

Prone position (to drain the posterior segments of the lungs)

Right lateral position (to drain the right middle lobe and right lower lobe) Left lateral position (to drain the left lower lobe)

Sitting upright position (to drain the upper lobes)

By placing the patient in these different positions, the nurse can help to ensure that all areas of the lungs are drained effectively.