Which factor contributes to the formation of a pressure injury when a patient’s body slides downward to the foot of the bed?
Shearing force.
Acceleration.
Momentum.
Applied force.
The Correct Answer is A
Choice A rationale:
Shearing force is the primary factor that contributes to the formation of pressure injuries when a patient's body slides downward. It occurs when two surfaces move in opposite directions, causing stress and strain on the tissues between them.
Compression of Tissues: When the patient's body slides downward, the skin and underlying tissues are compressed between the bony prominences (such as the sacrum or heels) and the surface of the bed. This compression restricts blood flow to the area, depriving the tissues of oxygen and nutrients.
Tissue Stretching and Tearing: As the body slides, the skin and underlying tissues are also stretched and pulled in opposite directions. This shearing force disrupts the normal alignment of cells and tissues, leading to microscopic tears and damage.
Impaired Blood Flow: Shearing force further compromises blood flow by stretching and compressing blood vessels. This reduces the delivery of oxygen and nutrients to the tissues, while also hindering the removal of waste products.
Tissue Damage and Necrosis: The combination of compression, stretching, and impaired blood flow leads to cell death and tissue necrosis. This is the hallmark of pressure injuries, which can range from superficial blisters to deep ulcers that extend into muscle and bone.
Factors that Increase Shearing Force: Certain factors can increase the risk of shearing force and pressure injury development, including:
Increased moisture (from sweat or incontinence) Decreased mobility
Poor skin integrity
Malnutrition
Friction from bedsheets
In conclusion, shearing force is the main factor that contributes to pressure injury formation when a patient's body slides downward. It disrupts blood flow, damages tissues, and can lead to significant wounds.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A rationale:
Soaking the wound in an Epsom salt solution is not recommended for abscessed wounds. While Epsom salt has some potential benefits for wound healing, such as reducing inflammation and drawing out fluids, it can also be irritating to the skin and may actually worsen the abscess. Additionally, there's a risk of introducing bacteria from the Epsom salt into the wound, which could lead to further infection.
Choice B rationale:
Administering warm water sitz baths is not directly applicable to an abscessed leg wound. Sitz baths are typically used for conditions affecting the perineal area, such as hemorrhoids or postpartum discomfort. They may help to soothe and cleanse the affected area, but they would not be effective in treating an abscess on the leg.
Choice C rationale:
Applying cold moist compresses is not the most appropriate intervention for an abscessed wound. Cold compresses can help to reduce pain and inflammation, but they can also constrict blood vessels and potentially hinder the healing process. Warm compresses are generally preferred for abscesses because they can help to promote drainage and healing.
Choice D rationale:
Applying warm moist compresses is the most appropriate nursing intervention for an abscessed leg wound. Warm compresses have several beneficial effects:
They promote vasodilation, which increases blood flow to the area and helps to deliver white blood cells and other healing agents to the site of infection.
They help to soften and loosen hardened pus, making it easier for the abscess to drain.
They provide a moist environment that promotes healing and prevents the wound from drying out. They can help to reduce pain and inflammation.
Correct Answer is A
Explanation
The correct answer is E(None of the Above)
Rationale for E:
The options A, B, C, and D all describe actions or physiological measurements that do not directly indicate an allergic reaction.
Allergic reactions involve the immune system's response to a specific substance, whereas side effects are unintended reactions to a medication that are not caused by an immune response.
Key differences between allergic reactions and side effects:
Allergic reactions:
Typically occur rapidly after exposure to the allergen.
Can involve various body systems, including the skin (hives, itching, rash), respiratory system (wheezing, difficulty breathing, throat tightness), gastrointestinal system (nausea, vomiting, diarrhea), and cardiovascular system (low blood pressure, shock).
May be life-threatening in severe cases, such as anaphylaxis. Side effects:
Can occur at any time during medication use.
Usually more predictable and less severe than allergic reactions.
Often subside as the body adjusts to the medication or with dose adjustments. Important considerations for nurses:
Carefully assess patients for potential allergies before administering medications.
Monitor patients closely for any signs of allergic reactions or side effects after medication administration.
Promptly intervene if an allergic reaction is suspected, following established protocols and administering emergency medications as needed.
Document all observations and actions related to medication administration and patient responses.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.
