What type of shock is characterized by a hypersensitivity reaction causing massive vasodilation and capillary leaks, which may occur with a drug or latex allergy?
Anaphylactic shock.
Cardiogenic shock.
Neurogenic shock.
Hypovolemic shock.
The Correct Answer is A
The correct answer is choice A: Anaphylactic shock.
Choice A rationale:
Anaphylactic shock is the correct answer. Anaphylactic shock is a severe and potentially life-threatening allergic reaction that causes massive vasodilation, capillary leakage, and bronchoconstriction. It can occur rapidly after exposure to an allergen such as certain foods, insect stings, medications, or latex. The release of histamine and other inflammatory mediators leads to systemic vasodilation and increased permeability of blood vessels, resulting in a sudden drop in blood pressure and compromised organ perfusion.
Choice B rationale:
Cardiogenic shock is characterized by inadequate cardiac output due to severe heart dysfunction. It is typically caused by conditions like myocardial infarction, heart failure, or other cardiac issues. While allergic reactions can potentially affect the cardiovascular system, the symptoms described in the question are more indicative of anaphylactic shock.
Choice C rationale:
Neurogenic shock results from disruption of sympathetic nervous system control over blood vessel tone, often due to spinal cord injury or severe emotional distress. This leads to widespread vasodilation and a sudden drop in blood pressure. While it can cause hemodynamic instability, it doesn't specifically involve the hypersensitivity reaction and capillary leaks associated with anaphylactic shock.
Choice D rationale:
Hypovolemic shock is caused by a significant loss of blood volume or bodily fluids, leading to decreased intravascular volume and subsequent inadequate tissue perfusion. This shock type is not directly related to a hypersensitivity reaction or capillary leakage caused by allergic responses. 2 / 2
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
The correct answer is choice B. Ask the adolescent, "Why did you come here today?".
Choice A rationale:
Using the adolescent's own words in correct medical terminology to determine the problem is essential for accurate documentation, but it might not be the initial step in determining the chief complaint. The approach in choice B provides an opportunity for the adolescent to express their primary concern in their own terms.
Choice B rationale:
Asking the adolescent, "Why did you come here today?" allows them to voice their main reason for the visit in their own words. This approach respects their autonomy and encourages open communication. It also helps to identify the primary issue from the adolescent's perspective.
Choice C rationale:
While asking for a detailed listing of symptoms is important for a comprehensive health history, it might not be the best way to initially determine the chief complaint. This approach could potentially overwhelm the patient and miss the opportunity for them to express their primary concern.
Choice D rationale:
Interviewing the parent away from the adolescent might be necessary in certain situations, but it is not the best method for determining the adolescent's chief complaint. The adolescent's input is crucial for understanding their own health concerns and developing a patient-centered approach.
Correct Answer is C
Explanation
The correct answer is choice C. Decreased oxygen-carrying capacity of blood.
Choice A rationale:
Anemia does not primarily result in a depressed hematopoietic system. In fact, anemia often occurs due to various factors that affect red blood cell production or lifespan. The hematopoietic system can be overactive in response to anemia, attempting to compensate for the reduced oxygen-carrying capacity of the blood.
Choice B rationale:
While some anemias may involve the presence of abnormal hemoglobin (e.g., sickle cell anemia), this is not the primary result of anemia. The primary consequence of anemia is a decreased ability of the blood to carry oxygen to the body's tissues.
Choice C rationale:
The correct choice. Anemia leads to a decreased oxygen-carrying capacity of the blood. Hemoglobin, the protein in red blood cells responsible for carrying oxygen, is reduced in quantity or function in various types of anemia. This results in inadequate oxygen delivery to tissues, potentially causing symptoms such as fatigue, weakness, pallor, and shortness of breath.
Choice D rationale:
Increased blood viscosity is not a primary result of anemia. Anemia tends to reduce blood viscosity because there are fewer red blood cells and less hemoglobin present, which makes the blood more fluid and less viscous. Increased blood viscosity is more commonly associated with conditions like polycythemia, where there is an excess of red blood cells.
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