A nurse is assessing a client who has a pressure ulcer. The nurse should recognize which of the following findings is a manifestation of a stage 3 pressure ulcer?

Partial-thickness skin loss.

Necrotic subcutaneous tissue.

Blood-filled blisters.

Exposed bone.

Answer and Explanation

The Correct Answer is B

The correct answer is choice B. Necrotic subcutaneous tissue.

Choice A rationale:

Partial-thickness skin loss (Choice A) is characteristic of a stage II pressure ulcer, not a stage III ulcer. A stage II pressure ulcer involves the loss of the epidermis and possibly the dermis, resulting in a shallow open ulcer with a red-pink wound bed.

Choice B rationale:

Necrotic subcutaneous tissue is a manifestation of a stage III pressure ulcer. A stage III ulcer involves full-thickness skin loss where subcutaneous fat may be visible, but exposed bone or muscle is not yet present. Necrotic tissue in the wound bed indicates a more advanced level of tissue damage and the need for appropriate wound care to promote healing.

Choice C rationale:

Blood-filled blisters (Choice C) are not specific to pressure ulcers and are more commonly associated with friction or shear forces. These blisters are not indicative of a stage III pressure ulcer, which involves visible full-thickness tissue loss.

Choice D rationale:

Exposed bone (Choice D) is a characteristic of a stage IV pressure ulcer, not a stage III ulcer. A stage IV ulcer involves extensive tissue loss with exposure of muscle, tendon, or bone. This represents a severe level of tissue damage and requires intensive wound care and management.

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Correct Answer is B

Explanation

Choice A rationale:

Applying the pulse oximeter probe to the toe is not the most appropriate location. While toe measurements can be used, the fingers are more commonly used due to their accessibility and accuracy. Edema in the hands could affect the accuracy of readings.

Choice B rationale:

The nurse should apply the pulse oximeter probe to the earlobe. This choice is correct because the earlobe is a well-vascularized and easily accessible area that provides accurate oxygen saturation measurements. Thickened toenails and edema of the hands might compromise readings in those locations.

Choice C rationale:

Applying the pulse oximeter probe to a skin fold is not a recommended site for oxygen saturation measurement. While there are various sites where pulse oximeters can be applied, the earlobe and finger are more suitable due to their consistent blood flow and accessibility.

Choice D rationale:

While applying the pulse oximeter probe to the finger is a common and acceptable practice, in this scenario, edema of the hands could affect the accuracy of the readings. The earlobe is a better choice as it is less likely to be affected by edema and can provide accurate readings.

A. Unequal chest expansion. B. Atrophied neck and trapezius muscle. C. Increased tactile fremitus. D. An anterior-to-posterior chest diameter ratio of 1:1.

Correct Answer is A

Explanation

Choice A rationale:

Unequal chest expansion is the correct choice. In a patient with chronic obstructive pulmonary disease (COPD), the airways are often narrowed and obstructed, leading to difficulty in moving air in and out of the lungs. This can result in unequal chest expansion during breathing, where one side of the chest expands less than the other. This finding is commonly observed in patients with COPD due to the imbalance in lung function between different areas of the lungs.

Choice B rationale:

Atrophied neck and trapezius muscle is not a typical finding in COPD. Muscle atrophy can occur in conditions of prolonged disuse or immobility, but it is not a characteristic manifestation of COPD itself.

Choice C rationale:

Increased tactile fremitus refers to increased vibrations felt on the chest wall during speech. This finding is more commonly associated with conditions that cause lung consolidation, such as pneumonia. In COPD, there is often air trapping and hyperinflation of the lungs, which would not lead to increased tactile fremitus.

Choice D rationale:

An anterior-to-posterior chest diameter ratio of 1:1 is not a typical finding in a healthy individual, let alone in a patient with COPD. In COPD, there is often an increase in the anterior-to-posterior chest diameter ratio, giving the chest a barrel-like appearance. This is due to the trapped air and hyperinflation of the lungs, which is characteristic of the disease.

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A nurse is assessing a client who has a pressure ulcer. The nurse should recognize which of the following findings is a manifestation of a stage 3 pressure ulcer?

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