which of the following is a characteristic of disseminated intravascular coagulation dic
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ATI RN

ATI Pathophysiology Exam 3

1. Which of the following is a characteristic of disseminated intravascular coagulation (DIC)?

Correct answer: B

Rationale: Disseminated intravascular coagulation (DIC) is characterized by simultaneous clotting and bleeding throughout the body. This imbalance in the body's clotting system leads to the formation of blood clots in small blood vessels, which can consume clotting factors and platelets, ultimately leading to excessive bleeding. Choices A, C, and D are incorrect because they do not describe the characteristic feature of DIC, which involves both clotting and bleeding.

2. What is the process of moving air into the lungs with subsequent distribution to the alveoli called?

Correct answer: A

Rationale: The correct answer is A: Ventilation. Ventilation is the process of moving air into the lungs and distributing it to the alveoli for gas exchange. Choice B, Aeration, is not the correct term for this specific process. Choice C, Enclosure vapor, is not related to the movement of air into the lungs. Choice D, Residual volume, refers to the amount of air left in the lungs after maximal expiration and is not the process of moving air into the lungs.

3. Mrs. Jordan is an elderly client diagnosed with Alzheimer’s disease. She becomes agitated and combative when a nurse approaches to help with morning care. The most appropriate nursing intervention in this situation would be to:

Correct answer: C

Rationale: When dealing with an elderly client with Alzheimer’s disease who is agitated and combative, the most appropriate nursing intervention is to remain calm and talk quietly to the client. This approach can help soothe the client and prevent escalating the situation. Choice A is incorrect as being firm may further agitate the client. Choice B is inappropriate as restraining should only be used as a last resort for safety reasons and after other de-escalation techniques have been attempted. Choice D is not the best initial intervention and should only be considered after other non-pharmacological interventions have failed.

4. When the maternal immune system becomes sensitized against antigens expressed by the fetus, what type of immune reaction occurs?

Correct answer: C

Rationale: When the maternal immune system becomes sensitized against antigens expressed by the fetus, an alloimmune reaction occurs. In this situation, the mother's immune system recognizes the fetus as foreign due to differences in antigens, leading to an immune response against the fetus. Choice A, 'Autoimmune,' is incorrect because it refers to the immune system mistakenly attacking the body's own cells and tissues. Choice B, 'Anaphylaxis,' is not the correct answer as it is a severe allergic reaction that can be life-threatening. Choice D, 'Allergic,' is also incorrect as it refers to an immune response triggered by allergens, not antigens expressed by the fetus.

5. Which of the following hormones helps to raise the blood sugar level to help maintain homeostasis?

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.

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