The nurse is caring for a postoperative patient with an abdominal incision. A pillow is used during coughing to provide

Correct Answer: B

Rationale: A pillow during coughing splints the abdominal incision, supporting it to reduce strain on sutures and tissues cut through surgery. Coughing stresses the incision, risking dehiscence or pain from nerve irritation; splinting with a pillow or hands minimizes this pull, enhancing comfort and safety. It doesn't directly relieve pain analgesics do nor distract, as focus remains on coughing. Anxiety may lessen indirectly via comfort, but splinting's primary role is mechanical support. The nurse's use of this technique ensures effective airway clearance without compromising the incision, aligning with postoperative care to prevent complications like wound disruption.

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: D

Rationale: A healthy carrier is someone who harbors and can transmit an infectious agent without showing symptoms, including during the incubation period before illness manifests. 'Healthy carrier,' is correct because it fits this description, as seen with typhoid carriers like Mary Mallon, who spread disease unknowingly. 'Convalescent carrier,' refers to someone recovering from illness who still sheds pathogens, not during incubation. 'Precocious carrier,' is not a standard term in epidemiology. 'Contact carrier,' is also not recognized; it might imply transmission via contact but lacks specificity to incubation. The healthy carrier's asymptomatic yet infectious state during incubation aligns with the question, supported by public health definitions from the CDC, distinguishing D as the accurate answer over less applicable or nonexistent terms.

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.