A nurse is providing postoperative care for a patient who has a closed-wound drainage system. Which of the following actions should the nurse perform?

The correct answer is Choice A: Refer questions to the nursing supervisor.

Choice A rationale: By referring inquiries from other nurses to the nursing supervisor, the nurse maintains patient privacy and upholds healthcare privacy regulations, such as the Health Insurance Portability and Accountability Act (HIPAA). These regulations mandate that patient information should only be disclosed on a need-to-know basis. Referring questions to the nursing supervisor ensures that any information released is managed through the appropriate channels and protects the patient's confidentiality.

Choice B rationale: Transferring calls directly to the patient's room could infringe on their privacy and disrupt their care or rest. It is not the nurse's role to decide if the patient should be disturbed, and doing so may potentially compromise patient care and satisfaction.

Choice C rationale: Acknowledging that the person is a patient on the unit can violate confidentiality rules, as it confirms the individual's presence in the hospital and could lead to speculation about their condition. Nurses must maintain patient privacy by refraining from sharing any information, even if it seems harmless.

Choice D rationale: Contacting the patient's provider does not directly address the issue of handling inquiries from other nurses and could breach confidentiality if the provider discloses information without the patient's consent. Additionally, the provider may not be immediately available, which would delay addressing the inquiries and potentially expose the patient's privacy further.

Choice A rationale:

Metabolic alkalosis is characterized by a high pH (above 7.45), high bicarbonate (HCO3-) levels, and normal or low PaCO2. The patient's ABGs show a low pH (7.26), low bicarbonate (14 mEq/L), and low PaCO2 (30 mm Hg), which are not consistent with metabolic alkalosis.

Choice C rationale:

Respiratory alkalosis is characterized by a high pH (above 7.45), low PaCO2, and normal or slightly elevated bicarbonate levels. The patient's ABGs do show a low PaCO2, but the pH is low (acidic) and the bicarbonate is low, which are not consistent with respiratory alkalosis.

Choice D rationale:

Respiratory acidosis is characterized by a low pH (below 7.35), high PaCO2, and normal or slightly elevated bicarbonate levels. The patient's ABGs do show a low pH, but the PaCO2 is also low, which is not consistent with respiratory acidosis.

Rationale for the correct answer, B:

Metabolic acidosis is characterized by a low pH (below 7.35), low bicarbonate levels, and normal or low PaCO2. The patient's ABGs are consistent with metabolic acidosis because they show a low pH (7.26), low bicarbonate (14 mEq/L), and low PaCO2 (30 mm Hg).

Acute kidney injury is a common cause of metabolic acidosis. The kidneys play a vital role in regulating acid-base balance by excreting acids and reabsorbing bicarbonate. When the kidneys are damaged, they are unable to excrete acids effectively, leading to an accumulation of acids in the blood and a decrease in bicarbonate levels.

Additional Information:

It's important to note that the patient's low PaCO2 is likely a compensatory mechanism for the metabolic acidosis. In response to acidosis, the respiratory system tries to increase ventilation to blow off more carbon dioxide, which helps to raise the pH. However, this compensatory mechanism is often not enough to fully correct the acidosis.