Subjective symptoms are:

Correct Answer: A

Rationale: Subjective e.g., pain is client-felt, not observed , vague , or doctor-only . PSWs note this e.g., reports for plans. Errors risk ignoring input; this fits. This ensures client perspectives shape care, a PSW duty.

Correct Answer: A

Rationale: Open-ended questions e.g., 'How do you feel?' stimulate talk, unlike closed , long , or short . PSWs use this e.g., rapport for insight. Closed limits; this fits. This skill draws out needs, a PSW communication tool.

Correct Answer: D

Rationale: Viruses, bacteria, fungi, and protozoa are biological entities studied in microbiology, collectively known as microorganisms . They can cause infections, making them relevant to healthcare workers like PSWs who manage infection risks. Infection control measures are practices (e.g., handwashing) to combat these, not the entities themselves. Foot fungi is too narrow, referring only to fungal infections like athlete's foot, not all listed types. Plaque or tartar relates to dental buildup, often microbial but not encompassing viruses or protozoa. Microorganisms is the broad, scientifically accurate term uniting these pathogens, aligning with foundational knowledge in healthcare training and infection prevention, confirming it as the correct answer.

Correct Answer: A

Rationale: Bed cradles are metal or plastic frames placed over a bed to lift linens off the body, primarily to keep weight off the feet . This prevents pressure on sensitive areas, like in cases of edema or burns, enhancing comfort and circulation. Keeping hips abducted relates to positioning devices like pillows, not cradles. Promoting plantar flexion involves foot movement, unrelated to a cradle's static role. Preventing mattress sagging is a bed frame function, not a cradle's purpose. Used widely in care settings, bed cradles address linen pressure, aligning with their design and clinical use, making 'Keep the weight of the top linens off the feet' the correct answer.

Correct Answer: D

Rationale: The inferior vena cava carries oxygen-deprived (deoxygenated) blood from the lower body back to the heart, rich in carbon dioxide after tissue use. The aorta , radial artery , and brachial artery are arteries carrying oxygen-rich blood from the heart to the body (except pulmonary arteries). Circulatory physiology, key for PSWs in understanding oxygenation, distinguishes veins like the vena cava for their deoxygenated return, as per standard diagrams, making it the correct choice over arterial options.