The same nurse is now preparing to clean the abrasion on the client’s right elbow. The provider has prescribed mechanical debridement for the wound.
Which of the following is a form of mechanical debridement that the nurse should expect to use?
Wet-to-dry dressings
Surgical debridement
Enzymatic debridement
Autolytic debridement
The Correct Answer is A
Choice A rationale: Wet-to-dry dressings are a form of mechanical debridement. This method involves applying a wet dressing to the wound and allowing it to dry. When the dressing is removed, it also removes some of the dead or damaged tissue from the wound, helping to clean the wound and promote healing. This method can be painful and is not selective, meaning it can also remove healthy tissue. However, it is often used for wounds with a large amount of debris or necrotic tissue.
Choice B rationale: Surgical debridement is another method of wound debridement, but it is not a form of mechanical debridement. This method involves using surgical instruments to remove dead or damaged tissue. It is the fastest method of debridement and is often used for wounds that are infected or have a large amount of necrotic tissue. However, it requires a skilled practitioner and can be painful.
Choice C rationale: Enzymatic debridement involves applying a topical ointment that contains enzymes to the wound. These enzymes help to break down dead or damaged tissue. This method is selective and only removes necrotic tissue, leaving healthy tissue intact. However, it is not a form of mechanical debridement.
Choice D rationale: Autolytic debridement is a method that uses the body’s own enzymes and moisture to break down dead or damaged tissue. This is the slowest method of debridement but is also the least painful and is selective for necrotic tissue. Like enzymatic debridement, autolytic debridement is not a form of mechanical debridement.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A rationale
Vibration of the eardrum is not directly transmitted to the eighth cranial nerve, bypassing the inner ear structures. The vibrations from the eardrum are first transmitted through the ossicles (tiny bones in the middle ear) to the cochlea in the inner ear.
Choice B rationale
Sound waves enter the ear canal, but they are not directly converted to electrical impulses. The sound waves cause the eardrum to vibrate, and these vibrations are transmitted through the ossicles to the cochlea, where they are converted into electrical signals that are sent to the brain via the eighth cranial nerve.
Choice C rationale
Vibration of the eardrum transmits through the bony ossicles to the perilymph in the inner ear, stimulating the eighth cranial nerve. This is the correct description of the process of hearing.
Choice D rationale
Sound is not transmitted directly from the eardrum to the brain. The sound-induced vibrations of the eardrum are transmitted through the ossicles to the cochlea, where they are converted into electrical signals that are sent to the brain via the eighth cranial nerve.
Correct Answer is C
Explanation
Choice A rationale
Discarding any residual gastric contents before administering the tube feeding is not necessary and could lead to unnecessary loss of nutrients and electrolytes.
Choice B rationale
Positioning the patient in a low Fowler’s position is not the optimal position for administering a tube feeding. The patient should be in an upright position to reduce the risk of aspiration.
Choice C rationale
Testing the pH of the gastric aspirate is an important step before administering a tube feeding. This helps to verify that the feeding tube is in the stomach and not in the lungs.
Choice D rationale
Warming the feeding solution to body temperature is not necessary and could potentially lead to bacterial growth in the feeding solution.
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