Which technique promotes proper body mechanics when lifting a heavy object?

Correct Answer: C

Rationale: Using the legs to lift while keeping the back straight promotes proper body mechanics by distributing weight to the stronger leg muscles, minimizing spinal strain and injury risk. Bending from the waist overloads the back, inviting disc damage. Twisting while lifting compounds this risk, destabilizing the spine. Fully extended arms reduce control and leverage, straining shoulders and back. Nurses apply this technique to protect themselves and patients during transfers, ensuring safety and longevity in physically demanding roles leg power, not back bending, is the key to sustainable lifting.

Correct Answer: C

Rationale: A nasogastric (NG) tube delivers nutrients and medication directly to the stomach, bypassing the mouth for patients unable to eat or swallow, like those post-surgery or unconscious. Oxygen delivery uses nasal cannulas or masks, not NG tubes. Blood pressure measurement involves cuffs, not gastric access. Heart rate monitoring uses ECGs or pulse checks unrelated to NG function. Nurses insert and manage NG tubes to ensure nutritional support and drug administration, verifying placement to avoid complications, a vital tool in acute care settings.

Correct Answer: C

Rationale: Providing clear instructions and demonstrating movements empowers a patient with impaired mobility to perform range-of-motion exercises independently, fostering autonomy while ensuring correct technique to maintain joint health. Doing it for them undermines self-reliance it's passive, not active, care. Limiting to once daily risks stiffness; frequency depends on ability. Discouraging exercises halts progress and morale. Nurses model motions, offer feedback, and adjust as needed, promoting independence safely, a balance of guidance and empowerment critical for rehabilitation.

Correct Answer: D

Rationale: Creating a quiet and calm environment at night promotes comfort and sleep by minimizing noise and stress, aligning with the body's circadian rhythm for restful recovery. Constant light disrupts sleep cycles, causing agitation. Daytime napping may fragment nighttime rest, not enhance it. Limiting communication isolates, not comforts gentle interaction can soothe. Nurses dim lights, reduce chatter, and manage interruptions, crafting a hospital setting conducive to healing sleep, vital for physical and emotional well-being.

Correct Answer: D

Rationale: Soft restraints promote comfort and prevent skin irritation by using padded materials to limit movement safely, protecting patients at risk of self-harm or falls without causing abrasions. Punishment is unethical restraints are protective, not punitive. Restricting movement is the mechanism, not the purpose; comfort is the goal within that. Encouraging movement contradicts their use they're for safety. Nurses apply them snugly but gently, monitoring skin and adjusting, ensuring minimal discomfort while meeting safety needs, per care standards.