A nurse is looking after a patient who is 12 hours postoperative following a transurethral resection of the prostate (TURP) and has a 3-way urinary catheter with continuous irrigation.
The nurse observes that there has been no urinary output in the last hour. What should the nurse do first?

Choice A rationale:

It is crucial for the nurse to prioritize patient safety and adhere to professional guidelines when encountering a potential diversion of controlled substances. Informing the charge nurse is the most appropriate initial action for several reasons:

Chain of Command: The charge nurse holds a supervisory position and is responsible for addressing issues within the unit, including concerns about medication diversion. Reporting suspicions to the charge nurse ensures adherence to the established chain of command and facilitates a prompt, organized response.

Confidentiality and Objectivity: The charge nurse is trained to handle sensitive situations discreetly and objectively. They can initiate a thorough investigation while maintaining confidentiality and protecting the rights of all involved parties.

Access to Resources: The charge nurse has access to resources and authority to take immediate action, such as securing medications, initiating patient assessments, and notifying appropriate personnel within the healthcare facility.

Collaboration and Support: The charge nurse can provide guidance and support to the reporting nurse, ensuring their concerns are addressed appropriately and that they feel safe in coming forward with their suspicions.

Rationale for other choices:

B. Reporting the incident directly to the hospital’s security department might be premature without first informing the charge nurse. The charge nurse can assess the situation, gather more information, and determine the most appropriate course of action, which may or may not involve security at this initial stage.

C. Requesting assistive personnel (AP) to monitor the other nurse’s actions is inappropriate. It places a burden on APs who are not trained or authorized to investigate such matters. It could also compromise the integrity of the investigation and potentially jeopardize patient safety.

D. Confronting the other nurse directly is not recommended. It could escalate the situation, create a hostile work environment, and potentially compromise the investigation. It is essential to follow established protocols and involve appropriate personnel to ensure a fair and thorough investigation.

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.