in the ed a homeless client is brought in with severe hypothermia the police officers also state that they found a bottle of booze on the sidewalk nex
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ATI Pathophysiology Quizlet

1. In the ED, a homeless client is brought in with severe hypothermia. The police officers also state that they found a 'bottle of booze' on the sidewalk next to him. This puts the nurse on high alert since alcohol contributes to hypothermia by:

Correct answer: C

Rationale: Alcohol impairs judgment and dulls mental awareness, making a person less likely to seek shelter when experiencing hypothermia. This impaired judgment can lead to risky behaviors that exacerbate the effects of cold exposure. Choice A is incorrect because alcohol does not directly interfere with the appetite center in the brain to the extent described. Choice B is incorrect as alcohol consumption does not directly impact the amount of body fat present. Choice D is incorrect because alcohol does not increase the basal metabolic rate but rather slows it down.

2. When educating a client about to undergo a pacemaker insertion, the nurse explains the normal phases of cardiac muscle tissue. During the repolarization phase, the nurse will stress that membranes must be repolarized before they can be re-excited. Within the cell, the nurse understands that:

Correct answer: A

Rationale: During the repolarization phase of cardiac muscle tissue, potassium channels open while sodium channels close. This process is crucial for the cardiac muscle to return to its resting state after depolarization. Potassium moving out of the cell and sodium staying out helps reset the membrane potential and prepare the cell for the next depolarization phase. The influx of calcium is not the primary stimulus for repolarization in cardiac tissue; it is mainly involved in the depolarization phase. While electrical activity within the heart influences repolarization, the specific ion movements described in choice A are what physiologically drive repolarization. Cell membranes need to be in an active state during repolarization, not calm, to facilitate the necessary ion movements for muscle tissue to properly function.

3. A 70-year-old patient is seen in the family practice clinic. Which of the following vaccines should be administered to prevent shingles?

Correct answer: A

Rationale: The correct answer is A: Zoster vaccine. The Zoster vaccine is recommended for the prevention of shingles in individuals aged 50 years and older. Shingles is caused by the reactivation of the varicella-zoster virus, the same virus that causes chickenpox. The vaccine helps reduce the risk of developing shingles and decreases the severity and duration of the illness if it occurs. Choices B, C, and D are incorrect: Haemophilus influenzae Type b (Hib) vaccine is used to prevent infections caused by Haemophilus influenzae type b, Human papillomavirus (HPV) vaccine is used to prevent HPV infections that can lead to cervical cancer and other cancers, and Pneumococcal polyvalent vaccine is used to protect against infections caused by the bacterium Streptococcus pneumoniae.

4. An older adult patient has asked her primary care provider for a prescription that will help to resolve her “warped toenails.” The care provider has diagnosed the woman with onychomycosis. The nurse should anticipate that this patient will be treated with what drug?

Correct answer: B

Rationale: The correct answer is B: Terbinafine (Lamisil). Terbinafine is commonly used to treat onychomycosis, a fungal infection of the toenails or fingernails. It works by stopping the growth of the fungus. Micafungin (Mycamine) is an antifungal medication used for different types of fungal infections but is not typically used to treat onychomycosis. Voriconazole (Vfend) is another antifungal medication used for specific fungal infections, but it is not a first-line treatment for onychomycosis. Fluconazole (Diflucan) is also an antifungal medication, but it is more commonly used for yeast infections and may not be as effective for treating onychomycosis compared to terbinafine.

5. What is the most appropriate nursing diagnosis for the client's son based on the information provided?

Correct answer: C

Rationale: The correct answer is 'Caregiver role strain.' In the scenario presented, the son expresses that his father's constant confusion, incontinence, and tendency to wander are intolerable. These challenges indicate that the son is experiencing strain in his role as a caregiver. 'Risk for other-directed violence' is not appropriate because there is no indication of violent behavior. 'Disturbed sleep pattern' is not the most relevant nursing diagnosis given the information provided. 'Social isolation' is not the most appropriate choice as the son's concerns are related to the challenges of caregiving, not isolation.

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