The ambulatory surgical nurse calls to check on the patient at home the morning after surgery. The patient is reporting continued nausea and vomiting. Which of the following discharge education points should be reviewed with the patient?

Correct Answer: C

Rationale: Continued nausea and vomiting post-ambulatory surgery may need medication, so connecting the patient with the physician for relief (e.g., antiemetics) is key. Deep breaths or ginger ale/crackers may help mildly but fail for persistent symptoms. The ER is excessive unless dehydration worsens. This review ensures timely medical input, aligning with ambulatory care follow-up to manage common postoperative issues effectively.

Correct Answer: A

Rationale: The CPU's control unit (CU) directs operations by managing task scheduling and timing, ensuring instructions are executed in sequence. 'Control Unit,' is correct because it fetches, decodes, and executes commands, coordinating the CPU's activities, as detailed in computer engineering texts (e.g., Patterson and Hennessy's Computer Organization). 'ALU' (Arithmetic Logic Unit), performs calculations and logic operations, not scheduling. 'Processor,' is the entire CPU, too broad to specify this role. 'Coordinator,' is not a standard CPU component. The CU's role as the traffic cop' of the processor, synchronizing data flow and instruction timing, distinguishes it from the ALU's computational focus or the processor's generality, making A the precise answer based on CPU architecture.

Correct Answer: D

Rationale: Veracity is the ethical principle obligating nurses to be truthful with patients, fostering trust. 'Veracity,' is correct because it directly ties to honesty, as per the ANA Code of Ethics, ensuring accurate information (e.g., about treatment risks). 'Beneficence,' is doing good, not truth-specific. 'Non-maleficence,' is avoiding harm, not about truthfulness. 'Fidelity,' is keeping promises, distinct from honesty. Veracity's focus on truthful communication—critical in patient-nurse relationships—distinguishes it, making D the precise answer, supported by ethical frameworks emphasizing transparency in care.

Correct Answer: B

Rationale: Frusemide (furosemide), a loop diuretic, affects fluid and electrolyte balance, leading to specific side effects. 'Hypotension,' is correct because it causes rapid fluid loss, reducing blood volume and pressure, as per clinical pharmacology (e.g., Brunton's Goodman & Gilman). 'Hyperchloraemia,' is false; frusemide causes hypochloremia via chloride loss. 'Hypermagnesia,' is incorrect; it leads to hypomagnesemia. 'Tearing,' is unrelated to diuretic effects. Hypotension's prevalence as a documented adverse effect, especially in overdose or dehydration, distinguishes B as the accurate answer, reflecting frusemide's mechanism.

Correct Answer: C

Rationale: Nitrous oxide (N2O) is an inhalation anesthetic with distinct properties. 'It is the only true gas,' is correct because it's stored as a gas at room temperature, unlike volatile liquids (e.g., sevoflurane), per anesthesiology texts (e.g., Barash). 'It cannot be used for rapid induction,' is false; it's quick-acting, though weak alone. 'It has an unpleasant odour,' is incorrect; it's odorless or slightly sweet. 'It is generally used as a volatile adjunct,' is true but less defining than its gaseous state. N2O's unique physical property as a true gas distinguishes C as the accurate answer.