ATI RN
ATI Pathophysiology Exam 1
1. Which of the following hormones helps to raise the blood sugar level to help maintain homeostasis?
- A. Antidiuretic hormone (ADH)
- B. Insulin
- C. Glucagon
- D. Thyroxine
Correct answer: C
Rationale: The correct answer is C, Glucagon. Glucagon helps raise blood sugar levels by stimulating the liver to release stored glucose into the bloodstream, thus aiding in maintaining homeostasis. Antidiuretic hormone (ADH), choice A, functions in regulating water balance in the body, not blood sugar levels. Insulin, choice B, lowers blood sugar levels by facilitating glucose uptake by cells. Thyroxine, choice D, is a hormone produced by the thyroid gland that regulates metabolism and has no direct effect on blood sugar levels.
2. A client asks a nurse about the cause of Parkinson's disease. How should the nurse respond?
- A. Parkinson's disease is caused by a lack of dopamine in the brain, which affects movement.
- B. Parkinson's disease is caused by an excess of acetylcholine in the brain, leading to tremors and rigidity.
- C. Parkinson's disease is caused by an autoimmune response that attacks the nervous system.
- D. Parkinson's disease is caused by a bacterial infection that needs to be treated with antibiotics.
Correct answer: A
Rationale: The correct answer is A. Parkinson's disease is caused by a deficiency of dopamine in the brain, which results in the characteristic motor symptoms such as tremors, rigidity, and bradykinesia. Choice B is incorrect because Parkinson's disease is not caused by an excess of acetylcholine. Choice C is incorrect because Parkinson's disease is not an autoimmune disorder. Choice D is incorrect because Parkinson's disease is not caused by a bacterial infection and cannot be treated with antibiotics.
3. A patient arrives at her follow-up appointment 1 month post-hysterectomy and complains to the nurse that her scars do not seem to be healing properly. Upon inspection, the nurse notices that the scars are raised but still within the boundaries of the original incisions. The nurse tells the patient this kind of dysfunctional wound healing is called:
- A. Hypertrophic scarring
- B. Dehiscence
- C. Contracture
- D. A keloid
Correct answer: A
Rationale: Hypertrophic scarring occurs when a scar is raised but remains within the boundaries of the original wound, unlike keloids, which extend beyond the wound edges. Dehiscence refers to the separation of wound edges, while contracture involves the tightening or constriction of a scar, leading to limited mobility.
4. Which of the following describes passive immunity?
- A. Vaccination against the disease
- B. Transfer of antibodies from mother to baby
- C. Cuts or wounds that are infected and heal
- D. Having the disease in question
Correct answer: B
Rationale: Passive immunity is the transfer of pre-formed antibodies from one individual to another, providing immediate but temporary protection. In this case, the correct answer is the transfer of antibodies from the mother to the baby, as it describes the concept of passive immunity. Choice A, vaccination against the disease, refers to active immunity where the individual's immune system is stimulated to produce antibodies. Choice C, cuts or wounds that are infected and heal, is unrelated to immunity. Choice D, having the disease in question, does not describe passive immunity but rather acquiring active immunity through exposure to the pathogen.
5. When communicating with a client who has cognitive impairment, which of the following will Nurse Dory use?
- A. Complete explanations with multiple details
- B. Pictures or gestures instead of words
- C. Stimulating words and phrases to capture the client’s attention
- D. Short words and simple sentences
Correct answer: D
Rationale: Nurse Dory will use short words and simple sentences when communicating with a client who has cognitive impairment. This approach is effective because it helps improve understanding and comprehension for individuals with cognitive challenges. Choice A is incorrect because complete explanations with multiple details may overwhelm or confuse clients with cognitive impairment. Choice B is not the most effective option as using pictures or gestures instead of words may not always be practical or necessary. Choice C is also not ideal as stimulating words and phrases may cause distraction rather than enhance communication for clients with cognitive impairment.
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