The nurse administers a medication to the patient.
Which symptoms indicate that the patient is having an allergic reaction rather than a side effect?

Choice A rationale:

Incorrect because swallowing the tablet with water would lead to slower absorption and a delayed onset of action. Nitroglycerin is rapidly absorbed through the oral mucosa, and swallowing it would route it through the digestive system, where it would be absorbed more slowly and less effectively.

Swallowing the tablet could also increase the risk of side effects, such as headache and flushing, due to the larger amount of the drug that would be absorbed systemically.

Choice B rationale:

Incorrect because crushing the tablet and dissolving it in water would also delay its absorption. This method would require the tablet to dissolve in the water before it could be absorbed through the oral mucosa, which would slow down the onset of action.

Crushing the tablet could also damage the medication and make it less effective.

Choice C rationale:

Incorrect because placing the tablet in the patient's mouth next to the cheek would not allow for optimal absorption. The oral mucosa under the tongue is more permeable than the cheek, so placing the tablet under the tongue allows for faster and more efficient absorption.

Placing the tablet in the cheek could also increase the risk of the patient accidentally swallowing it.

Choice D rationale:

Correct because placing the tablet under the patient's tongue allows for rapid absorption and a quick onset of action. The sublingual route is the preferred method of administration for nitroglycerin because it allows the medication to bypass the digestive system and be absorbed directly into the bloodstream.

This method also allows for the patient to easily remove the tablet if they experience any side effects.

Choice A rationale:

Indurated describes tissue that is hardened and thickened, typically due to inflammation or fibrosis. While a decubitus ulcer with thick necrotic tissue may feel firm to the touch, induration does not accurately capture the extent of tissue damage and depth of the wound.

Indurated tissue often feels leathery or stiff, while necrotic tissue can be more varied in texture, ranging from dry and crusty to soft and sloughy.

Additionally, induration can occur in wounds that are not full-thickness ulcers, such as pressure injuries that have not yet progressed to the point of tissue loss.

Choice B rationale:

Fluctuant describes a fluid-filled cavity beneath the skin. While a decubitus ulcer with thick necrotic tissue may have some underlying fluid, it would not typically be described as fluctuant.

Fluctuance is more characteristic of abscesses or other fluid collections that have a distinct, palpable pocket of fluid.

The presence of thick necrotic tissue in a decubitus ulcer can obscure the presence of any underlying fluid, making it difficult to assess for fluctuance.

Choice D rationale:

Macerated describes skin that is softened and broken down due to prolonged exposure to moisture. While maceration can occur in the surrounding skin of a decubitus ulcer, it does not accurately describe the ulcer itself.

Maceration is typically seen in areas where skin folds rub together, such as the groin or armpits, and is often associated with incontinence or excessive sweating.

The presence of thick necrotic tissue in a decubitus ulcer indicates a more advanced stage of tissue damage that is not simply due to moisture exposure.

Choice C rationale:

Unstageable is the most accurate term to describe a decubitus ulcer with thick necrotic tissue because it indicates that the extent of tissue damage cannot be fully assessed.

Thick necrotic tissue obscures the base of the wound and the surrounding tissue, making it impossible to determine the depth of the ulcer or the extent of undermining.

This lack of visibility prevents accurate staging of the ulcer using the traditional pressure ulcer staging system, which categorizes ulcers based on their depth and extent of tissue involvement.

Therefore, unstageable is the most appropriate term to describe a decubitus ulcer with thick necrotic tissue.