Which of the following clinical findings is expected in a patient who has undergone gastric lavage and prolonged vomiting?

Correct Answer: A

Rationale: Prolonged vomiting and gastric lavage lose stomach acid (HCl), causing metabolic alkalosis elevated pH, not decreased (acidosis). Bicarbonate rises as the body compensates, not oxygen or osmolarity, which are unrelated. Nurses monitor for alkalosis symptoms (e.g., tetany), correcting with fluids like saline, restoring acid-base balance disrupted by gastric content loss.

Correct Answer: C

Rationale: Maslow's hierarchy ranks physiological needs air, water, food, shelter as the most basic, foundational level for survival. Without these, higher needs cannot be pursued; for instance, a patient struggling to breathe (physiological) won't prioritize self-esteem. Physical and psychological isn't a Maslow category; it blends levels imprecisely. Love and belonging (e.g., relationships) is third-tier, reliant on physiological and safety needs being met first. Self-actualization, the top tier, involves personal fulfillment, achievable only after all lower needs are satisfied. In nursing, prioritizing physiological needs like oxygen for a hypoxic patient ensures life-sustaining care precedes emotional or growth-oriented interventions. Maslow's model underscores this hierarchy's logic: physiological stability is the bedrock, making it the most basic need driving human behavior and nursing priorities.

Correct Answer: D

Rationale: Subjective data are clients' perceptions e.g., 'I feel dizzy' reported directly, capturing experiences unmeasurable by others. This contrasts with objective data (e.g., pulse), observable by nurses. Observational recordings are objective, like noting pallor, not perceptions. Ancillary reports (e.g., lab results) are objective, external data, not client-voiced. Subjective data's focus on personal input e.g., pain severity enriches assessment, guiding nurses to explore symptoms' impact (e.g., anxiety's role), making it vital for holistic care and the correct classification here.

Correct Answer: A

Rationale: Hypotonic solutions (e.g., 0.45% saline) shift fluid into cells, replacing intracellular loss (e.g., dehydration), making this true ideal for cellular rehydration. Smaller veins aren't ideal for irritating solutions (e.g., potassium); larger veins dilute and tolerate them better, reducing phlebitis making this false. Adapting the true/false format, 'hypotonic solutions should replace intracellular loss' stands as true, supported by fluid dynamics in nursing. Both being true fails due to the vein statement. Neither true ignores the hypotonic role. The first statement's accuracy aligns with IV therapy principles, guiding nurses in fluid management, making it the correct choice.

Correct Answer: B

Rationale: Teaching clients to manage their health effectively is a key nursing role in promotion.