To prevent pressure ulcers, which intervention should be included in the plan of care?
First, the core concept here is about pressure ulcer prevention. The main factors contributing to pressure ulcers are prolonged pressure, shear, friction, and moisture. Also, poor circulation and reduced sensation can increase risk. So interventions should address these factors.
The correct intervention is likely related to repositioning. Repositioning every 2 hours is a standard recommendation to relieve pressure on vulnerable areas like the sacrum, heels, and elbows. This is a common clinical guideline, so that's probably the right answer.
Now, the incorrect options might include things like using antiseptic ointments (which don't prevent ulcers), keeping the skin dry (important but not the primary intervention), or using special mattresses (which can help but are not the mainstay). Another option might be elevating the head of the bed, which can actually increase shear and is not recommended for prevention.
The clinical pearl would be to emphasize regular repositioning as the cornerstone of prevention. Also, maybe mention using pressure-relieving devices as adjuncts but not replacements for repositioning.
I need to structure the explanation with the required sections. Make sure to mention the core concept clearly, explain why repositioning works, why other options are wrong, and highlight the key point. Keep it concise but thorough, using medical terms appropriately.
**Core Concept**
Pressure ulcer prevention focuses on reducing sustained pressure and shear on bony prominences. Key strategies include regular repositioning, pressure-relieving surfaces, skin integrity monitoring, and optimizing nutrition/mobility.
**Why the Correct Answer is Right**
Repositioning patients every 2 hours is the gold standard for preventing pressure ulcers. This intervention redistributes pressure, improves tissue perfusion, and prevents ischemia-reperfusion injury in high-risk areas (e.g., sacrum, heels). It directly addresses the primary pathophysiological mechanism—prolonged pressure on capillaries—by restoring blood flow before irreversible damage occurs.
**Why Each Wrong Option is Incorrect**
**Option A:** *Using antiseptic ointments* is incorrect because these treat infections, not prevent ulcers.
**Option B:** *Elevating the head of the bed >30°* increases shear force on the sacrum, worsening risk.
**Option C:** *Applying moisture barrier creams* protects skin from incontinence but does not prevent pressure damage.
**Clinical Pearl / High-Yield Fact**
Never forget: *"Reposition every 2 hours"* is a high-yield exam fact. Avoid prolonged head elevation (>30°) in bedridden patients to prevent sacral shear. Use a pressure-relieving mattress *in addition* to repositioning, not as a substitute.
**Correct Answer: C. Reposition the patient every 2 hours**