What are the causes of a pressure ulcer? (Select all that apply.)

Choice A reason: Color is an important indicator of the blood flow and oxygenation to the affected extremity. The nurse should compare the color of the skin, nails, and mucous membranes of the affected and unaffected extremities and look for any signs of pallor, cyanosis, or mottling. These signs can indicate ischemia, hypoxia, or impaired circulation, which can lead to tissue damage or necrosis.

Choice B reason: Temperature is another important indicator of the blood flow and oxygenation to the affected extremity. The nurse should compare the temperature of the skin of the affected and unaffected extremities by palpating with the back of the hand and look for any signs of warmth or coolness. These signs can indicate inflammation, infection, or reduced perfusion, which can affect the healing process or cause complications.

Choice C reason: Ecchymosis is not an indicator of the neurovascular status of the affected extremity. Ecchymosis is the discoloration of the skin caused by bleeding under the skin, which can result from trauma, surgery, or anticoagulant therapy. Ecchymosis is expected after an ORIF of a femur fracture and does not necessarily indicate a problem with the blood flow or oxygenation to the extremity.

Choice D reason: Skin integrity is not an indicator of the neurovascular status of the affected extremity. Skin integrity is the condition of the skin and its ability to resist damage, infection, or breakdown. Skin integrity can be affected by factors such as pressure, friction, moisture, or foreign bodies. The nurse should assess the skin integrity of the affected extremity and look for any signs of wounds, ulcers, or infections, but these signs do not reflect the neurovascular status of the extremity.

Choice E reason: Sensation is an important indicator of the nerve function and innervation of the affected extremity. The nurse should assess the sensation of the affected extremity by asking the client to report any numbness, tingling, or pain, or by testing the client's response to light touch, pressure, or temperature. These signs can indicate nerve damage, compression, or irritation, which can affect the mobility and function of the extremity.

Choice A reason: Color is a characteristic of exudate that should be included when documenting it. Color can indicate the type and severity of the wound infection or inflammation. For example, yellow or green exudate may indicate a bacterial infection, while red or brown exudate may indicate bleeding or necrosis.

Choice B reason: Odor is a characteristic of exudate that should be included when documenting it. Odor can indicate the presence and type of microorganisms in the wound. For example, a foul or putrid odor may indicate anaerobic bacteria, while a sweet or fruity odor may indicate pseudomonas.

Choice C reason: Heat is not a characteristic of exudate that should be included when documenting it. Heat is a sign of inflammation that can be assessed by palpating the skin around the wound, not by observing the exudate. Heat does not directly reflect the quality or quantity of the exudate.

Choice D reason: Consistency is a characteristic of exudate that should be included when documenting it. Consistency can indicate the viscosity and composition of the exudate. For example, thin or watery exudate may indicate a serous or serosanguineous fluid, while thick or creamy exudate may indicate a purulent or fibrinous fluid.

Choice E reason: Amount is a characteristic of exudate that should be included when documenting it. Amount can indicate the extent and stage of the wound healing process. For example, a large amount of exudate may indicate a high level of inflammation or infection, while a small amount of exudate may indicate a low level of inflammation or infection.