The nurse's obligation to be truthful to her clients is called the principle of

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: 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.

Correct Answer: B

Rationale: Delimitation defines the study's boundaries, set by the researcher. 'Scope of the study,' is correct because it outlines what's included (e.g., population, time), per research texts (e.g., Creswell). 'Limitation of the study,' addresses constraints beyond control. 'Relevance of the study,' justifies importance. 'Objective of the study,' states goals. Scope's role in setting intentional limits—e.g., nurses in urban hospitals'—distinguishes B as the accurate answer.

Correct Answer: B

Rationale: The greater omentum, a peritoneal fold, lies anterior to the small intestine, draping over it. 'Anterior,' is correct, per anatomical positioning (e.g., Netter's Atlas). 'Posterior,' is incorrect; it's behind the stomach, not intestine. 'Superficial,' is vague but implies skin-level. 'Deep,' suggests below, not above. Anterior's directional accuracy makes B the precise answer.

Correct Answer: D

Rationale: Arteries withstand pulse pressure via elasticity. 'An elastic tunica media,' is correct, allowing stretch and recoil (e.g., aorta), per anatomy (e.g., Ross). 'A thick tunica interna,' is less relevant. 'A rigid tunica media,' resists stretch. 'A flexible endothelium,' is minor. Elasticity in the media makes D the accurate answer.