A teenage client is admitted to the emergency department following a bee sting. The client arrives with a body rash and 30 minutes later becomes short of breath.
The client's vital signs are a heart rate of 130 beats/minute, respirations of 40 breaths/minute, and a blood pressure of 90/52 mm Hg. The client is exhibiting clinical manifestations of which type of immune reaction?
Autoimmune response.
Type II hypersensitivity.
Cell-mediated hypersensitivity.
IgE response hypersensitivity.
The Correct Answer is D
Choice A rationale:
Autoimmune responses occur when the immune system mistakenly attacks the body's own tissues. They are not typically triggered by allergens like bee stings.
Autoimmune responses often develop slowly over time and present with symptoms related to the specific tissues being attacked.
The rapid onset of symptoms in this case, along with the specific symptoms of rash, shortness of breath, and low blood pressure, are not characteristic of an autoimmune response.
Choice B rationale:
Type II hypersensitivity reactions involve antibodies that target and destroy cells or tissues. These reactions often take hours or days to develop, rather than minutes.
Examples of type II hypersensitivity reactions include transfusion reactions, hemolytic disease of the newborn, and some autoimmune diseases.
The rapid onset of symptoms in this case is not consistent with a type II hypersensitivity reaction.
Choice C rationale:
Cell-mediated hypersensitivity reactions involve T cells that directly attack cells or tissues. These reactions typically take 1-3 days to develop.
Examples of cell-mediated hypersensitivity reactions include contact dermatitis (e.g., poison ivy), graft-versus-host disease, and some drug reactions.
The rapid onset of symptoms in this case, as well as the specific symptoms of rash, shortness of breath, and low blood pressure, are not characteristic of a cell-mediated hypersensitivity reaction.
Choice D rationale:
IgE response hypersensitivity reactions are the most immediate type of allergic reaction.
They are mediated by immunoglobulin E (IgE) antibodies, which bind to mast cells and basophils.
When an allergen (like bee venom) cross-links IgE antibodies on mast cells, it triggers the release of histamine and other inflammatory mediators.
These mediators cause vasodilation, increased vascular permeability, smooth muscle contraction, and mucus secretion, leading to the characteristic symptoms of an allergic reaction.
The rapid onset of symptoms in this case, including rash, shortness of breath, and low blood pressure, are consistent with an IgE-mediated hypersensitivity reaction.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Rationale for Choice A: Dysrhythmia
There is no information in the question stem to suggest that the patient is experiencing a dysrhythmia.
Dysrhythmias are abnormal heart rhythms that can be caused by a variety of factors, including heart disease, electrolyte imbalances, and medications.
While it is possible that the patient could develop a dysrhythmia as a complication of pneumonia, there is no evidence to support this in the given information.
Additionally, enalapril, which the patient is taking for hypertension, is not typically associated with an increased risk of dysrhythmias.
Rationale for Choice B: Toxicity
There is no information in the question stem to suggest that the patient is experiencing toxicity.
Toxicity can be caused by a variety of substances, including medications, drugs, and environmental toxins.
While it is possible that the patient could develop toxicity as a complication of pneumonia, there is no evidence to support this in the given information.
Additionally, the patient's medication regimen of enalapril and a multivitamin is not typically associated with an increased risk of toxicity.
Rationale for Choice C: Anemia
There is no information in the question stem to suggest that the patient is anemic.
Anemia is a condition in which there is a decreased number of red blood cells or hemoglobin in the blood.
While it is possible that the patient could develop anemia as a complication of pneumonia, there is no evidence to support this in the given information.
Additionally, the patient's surgical history of adenoid removal and a fractured tibia is not typically associated with an increased risk of anemia.
Rationale for Choice D: Pneumonia
The patient is a 51-year-old male with a diagnosis of pneumonia.
Pneumonia is an infection of the lungs that can be caused by bacteria, viruses, or fungi.
The patient's symptoms, such as cough, fever, and difficulty breathing, are all consistent with a diagnosis of pneumonia.
Additionally, the patient's medical history of hypertension does not rule out pneumonia, and in fact, some studies have shown that hypertension may be a risk factor for developing pneumonia.
Therefore, pneumonia is the most likely condition that the patient has based on the information provided.
Correct Answer is D
Explanation
Choice A rationale:
Incorrect. Open-angle glaucoma is not characterized by an abnormally small angle.
The angle in open-angle glaucoma is open, but the drainage system is not working properly. Therefore, restoring a smaller angle would not be an effective treatment goal.
Choice B rationale:
Incorrect. Eye drops used to treat open-angle glaucoma are not typically used for pain control.
While some individuals may experience mild discomfort associated with elevated eye pressure, pain is not a common symptom of open-angle glaucoma.
Additionally, eye drops used to treat glaucoma do not have anti-inflammatory properties to address swelling.
Choice C rationale:
Incorrect. While reducing excess eye pressure is an important initial goal of treatment, long-term management of open-angle glaucoma requires ongoing maintenance of normal eye pressure.
Simply reducing pressure temporarily is not sufficient to prevent vision loss.
Choice D rationale:
Correct. The primary goal of treatment for open-angle glaucoma is to maintain normal eye pressure over the long term. This is because elevated eye pressure can damage the optic nerve, leading to vision loss.
Eye drops are often used to lower eye pressure, and they typically need to be used for life to prevent vision loss.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.