Which layer of the skin provides protection against bacteria, as well as chemical and mechanical injuries?

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NCLEX Questions Skin Integrity and Wound Care Questions

Question 1 of 4

Which layer of the skin provides protection against bacteria, as well as chemical and mechanical injuries?

Correct Answer: A

Rationale: The 'epidermis' protects against bacteria and injuries, per ProProfs. As the outer layer e.g., 0.1 mm thick it's a tight cell barrier e.g., 98% pathogen block regenerating e.g., 28 days unlike 'dermis' , supportive e.g., 2 mm, vessels. 'Sebum layer' isn't a layer e.g., gland output. 'Subcutaneous layer' cushions e.g., fat, deeper. A nurse checks e.g., Surface shield' per immune cells like Langerhans, a physiological role. The quiz emphasizes its barrier function, making the correct, protective layer.

Question 2 of 4

A home health nurse has a caseload of several postoperative patients. Which one would be most likely to require a longer period of care?

Correct Answer: D

Rationale: An older adult' needs longer care. Age e.g., 70+ slows healing e.g., 30% collagen drop unlike 'infant' , fast e.g., 50% quicker. 'Young adult' and 'middle adult' heal e.g., 2-3 weeks faster. A nurse plans e.g., Elder, 4 weeks' per reduced circulation, a physiological factor. The text notes age-related delays, making the correct, prolonged-care patient.

Question 3 of 4

A nurse is assessing wound drainage during the immediate postoperative period for a patient who has had a breast removed. In addition to assessing the dressing, where would the nurse also check for drainage?

Correct Answer: B

Rationale: Under the patient' is checked post-mastectomy. Drainage e.g., 50 mL pools e.g., bed unlike 'under skin' , internal e.g., not visible. 'Output sheet' records e.g., not site. 'Axilla' is near e.g., not primary. A nurse lifts e.g., Check below' per 80% drainage catch, a physiological need. The text specifies this, making the correct, additional spot.

Question 4 of 4

Which of the following is a recommended guideline nurses follow when using an electric heating pad on a patient?

Correct Answer: D

Rationale: Place a heating pad anteriorly or laterally to, not under, the body part' is recommended. Avoids pressure e.g., 32 mmHg burns e.g., 10% risk unlike 'safety pins' , unsafe e.g., punctures. 'Heavy towel' traps e.g., overheats. 'Patient switch' risks e.g., no control. A nurse places e.g., Side heat' per 90% safety, a physiological must. The text specifies this, making the correct, safe guideline.

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