Correct Answer: D

Rationale: Tetanus immunoglobulin provides immediate passive immunity against *Clostridium tetani* in contaminated wounds, neutralizing toxins in unvaccinated patients. DTP (diphtheria, tetanus, pertussis) and tetanus toxoid build active immunity over time, unsuitable for acute cases. Tetanus antitoxin is outdated. Nurses administer immunoglobulin alongside toxoid for dual protection, preventing tetanus's lethal muscle spasms, critical in emergency settings.

Correct Answer: D

Rationale: Mr. Gary's pain in his amputated left leg is phantom pain (
D), a sensation in a missing limb, per neurological phenomena post-amputation. Acute (
A) and chronic (
B) relate to time, not absence. Referred (
C) is mislocated from source. Phantom pain, common after limb loss, arises from nerve endings, making D the correct type.

Correct Answer: B

Rationale: The stethoscope bell auscultates low-frequency Korotkoff sounds e.g., tapping in BP unlike the diaphragm (high-frequency). Pulse +4 (bounding), +1 (weak), and sound pitch (low) differ. Nurses use this e.g., bell placement for clear readings, per auscultation technique.

Correct Answer: A

Rationale: Nursing theory revolves around four major concepts: person (the client), environment (external influences), nursing (the profession's actions), and health (the client's well-being). These form a metaparadigm, a foundational framework for models like Roy's Adaptation or Orem's Self-Care, guiding practice and research. Promotive, preventive, curative, and rehabilitative are health care approaches, not core theoretical concepts specific to intervention types, not theory's essence. Nurse, person, environment, care swaps 'health' for 'care,' diluting the holistic focus; 'nursing' encompasses care broadly. Person, environment, theory, health replaces 'nursing' with 'theory,' confusing the framework with its product. The quartet of person, environment, nursing, and health unifies nursing's domain, ensuring theories address the client, their context, the nurse's role, and desired outcomes, making it the widely accepted answer in nursing scholarship.

Correct Answer: B

Rationale: A patient's chart is secondary compiled by others (e.g., past notes), not directly from the patient (primary). Tertiary (textbooks) or mixed don't fit. Charts offer history e.g., prior vitals crucial for continuity, per nursing documentation standards.