Question

Dramatic hypotension (low blood pressure) sometimes accompanies type I hypersensitivity reactions because?

Answer 1

Correct Answers:

Massive histamine release from mast cells leads to vasodilation

Rationale :

💎 Type I hypersensitivity (anaphylaxis) triggers mast cell degranulation, releasing large amounts of histamine into circulation

💎 Histamine causes systemic vasodilation and increased capillary permeability, leading to fluid leakage from vessels

💎 The result is hypovolemia and hypotension because blood pools in dilated vessels and plasma escapes into tissues

💎 Bronchoconstriction and airway edema occur simultaneously, worsening oxygen delivery and tissue perfusion

💎 Rapid intervention with epinephrine is needed to constrict vessels, open airways, and stabilize blood pressure

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Answer 2

Correct Answers:

Inhale slowly through your nose, position your lips like you are going to whistle and exhale slowly.

Rationale :

🔷 Pursed-lip breathing helps maintain positive airway pressure and prevents airway collapse during exhalation

🔷 Instruct the client to inhale slowly through the nose for 2 counts to allow controlled oxygen intake

🔷 Then exhale gently through pursed lips (like whistling) for about twice as long as inhalation

🔷 This technique enhances carbon dioxide elimination and improves ventilation efficiency in COPD patients

🔷 It reduces dyspnea and anxiety, allowing better control over the breathing pattern

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Answer 3

Correct Answers:

Anaphylaxis.

Rationale :

🔶 A bee sting introduces venom allergens that trigger a type I hypersensitivity reaction mediated by IgE antibodies

🔶 Upon re-exposure, mast cells release histamine, prostaglandins, and leukotrienes, causing systemic effects

🔶 Anaphylaxis presents with airway constriction, hypotension, urticaria, and potentially cardiovascular collapse

🔶 It is a medical emergency requiring immediate epinephrine administration to reverse vasodilation and bronchospasm

🔶 Other hypersensitivity types (II–IV) involve different immune mechanisms and are not associated with insect stings

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Answer 4

Correct Answers:

Increased anterior posterior diameter of the chest (barrel chest)

Rationale :

🟢 Chronic air trapping in COPD (emphysema) causes the lungs to overinflate, expanding the chest wall

🟢 This results in a barrel-shaped chest with an increased anterior-posterior diameter

🟢 The client’s circumoral cyanosis indicates chronic hypoxemia due to alveolar destruction and poor gas exchange

🟢 Accessory muscle use and dyspnea are typical findings as the patient struggles to exhale trapped air

🟢 Long-term exposure to irritants (e.g., smoking) leads to loss of alveolar elasticity and air retention

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Answer 5

Correct Answers:

Culture and sensitivity

Rationale :

🔵 A culture and sensitivity (C&S) test identifies the causative microorganism and determines which antibiotic is most effective

🔵 The culture isolates and grows the pathogen from the specimen, while the sensitivity shows response to various antibiotics

🔵 This helps prevent antibiotic resistance and ensures targeted therapy rather than empirical use

🔵 Samples are collected before antibiotics are started to avoid false-negative results

🔵 Using appropriate antibiotics shortens illness duration and prevents complications or recurrence

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Answer 6

Correct Answers:

Histamine release by the mast cells and basophils

Rationale :

💎 Histamine is released by mast cells and basophils during the vascular phase of inflammation

💎 It causes vasodilation of arterioles and increases capillary permeability, resulting in redness and heat at the injury site

💎 The widened vessels allow more blood flow and immune cells to reach the inflamed area rapidly

💎 This process forms the hallmark signs of acute inflammation: redness (rubor) and warmth (calor)

💎 Other mediators like prostaglandins and nitric oxide amplify this histamine-induced vasodilation

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Answer 7

Correct Answers:

Local inflammation.

Rationale :

🔷 Redness, warmth, swelling, and pain confined to one area (foot to mid-calf) indicate local inflammation

🔷 The process results from localized vasodilation and increased capillary permeability due to inflammatory mediators

🔷 Pain (rated 8/10) occurs because of prostaglandin release and pressure from fluid accumulation

🔷 Warmth and redness signify increased blood flow to deliver immune cells and nutrients for healing

🔷 The absence of systemic signs such as fever or leukocytosis confirms that the response is local, not systemic

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Answer 8

Correct Answers:

"I will limit my fluid intake to lessen the frequency of urination."

Rationale :

🔶 Reducing fluid intake worsens urinary tract infections by concentrating urine and promoting bacterial growth

🔶 Clients should be instructed to increase fluid intake to flush bacteria from the urinary tract

🔶 Completing the full antibiotic course is crucial even if symptoms subside early

🔶 Proper hygiene and frequent voiding help prevent reinfection and bacterial colonization

🔶 Persistent hematuria after treatment should be reported, as it may indicate unresolved infection or another pathology

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Answer 9

Correct Answers:

Type 1

Rationale :

🟢 Type I hypersensitivity reactions involve IgE-mediated mast cell degranulation and histamine release

🟢 Conditions such as hay fever, asthma, hives, and anaphylaxis are immediate reactions upon allergen exposure

🟢 Histamine triggers smooth muscle contraction, vasodilation, and mucus secretion, causing allergic symptoms

🟢 These reactions occur within minutes of exposure and can progress to anaphylactic shock if severe

🟢 Treatment includes antihistamines, corticosteroids, or epinephrine depending on severity

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Answer 10

Correct Order:

Order : 1 : No answer text available
Order : 2 : No answer text available
Order : 3 : No answer text available
Order : 4 : No answer text available

Rationale :

🔵In the first pregnancy, an Rh-negative mother carrying an Rh-positive fetus becomes sensitized and produces anti-Rh antibodies

🔵In the second pregnancy, memory B cells recognize Rh antigen and rapidly release anti-Rh antibodies

🔵These maternal antibodies cross the placenta and attach to fetal Rh-positive RBCs

🔵The attached antibodies destroy fetal red blood cells, leading to hemolytic disease of the newborn (erythroblastosis fetalis)

🔵 Prevention with Rho immune globulin (RhoGAM) after delivery or miscarriage prevents sensitization in Rh-negative mothers

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QLexNursing

1 :
Dramatic hypotension (low blood pressure) sometimes accompanies type I hypersensitivity reactions because?

2 :
A nurse is reinforcing teaching to a client on how to perform pursed lip breathing. Which of the following statements should the nurse include?

3 :
Which of the following is the hypersensitivity reaction that can occur after a bee sting?

4 :
A nurse is assessing a patient who has COPD with emphysema. The patient reports feeling very short of breath and has circumoral cyanosis. Which assessment finding does the nurse expect to find?

5 :
A staff development program on infectious disease is teaching about antibiotic sensitivity to bacterial infections. Which lab value will indicate the appropriate antibiotic to use for a specific pathogen?

6 :
Which of the following cellular processes contribute to the vasodilation associated with the vascular phase of inflammation?

8 :
A nurse is educating a patient with a newly diagnosed urinary tract infection about the treatment plan. Which statement by the patient indicates that more education is necessary?

9 :
Hay fever, asthma, hives, and anaphylaxis are all examples of which kind of hypersensitivity reaction?

10 :
Place in order the sequence of events leading to the pathogenesis of Rh isoimmunization?

QLexNursing

1 : Dramatic hypotension (low blood pressure) sometimes accompanies type I hypersensitivity reactions because?

2 : A nurse is reinforcing teaching to a client on how to perform pursed lip breathing. Which of the following statements should the nurse include?

3 : Which of the following is the hypersensitivity reaction that can occur after a bee sting?

4 : A nurse is assessing a patient who has COPD with emphysema. The patient reports feeling very short of breath and has circumoral cyanosis. Which assessment finding does the nurse expect to find?

5 : A staff development program on infectious disease is teaching about antibiotic sensitivity to bacterial infections. Which lab value will indicate the appropriate antibiotic to use for a specific pathogen?

6 : Which of the following cellular processes contribute to the vasodilation associated with the vascular phase of inflammation?

8 : A nurse is educating a patient with a newly diagnosed urinary tract infection about the treatment plan. Which statement by the patient indicates that more education is necessary?

9 : Hay fever, asthma, hives, and anaphylaxis are all examples of which kind of hypersensitivity reaction?

10 : Place in order the sequence of events leading to the pathogenesis of Rh isoimmunization?

1 :
Dramatic hypotension (low blood pressure) sometimes accompanies type I hypersensitivity reactions because?

2 :
A nurse is reinforcing teaching to a client on how to perform pursed lip breathing. Which of the following statements should the nurse include?

3 :
Which of the following is the hypersensitivity reaction that can occur after a bee sting?

4 :
A nurse is assessing a patient who has COPD with emphysema. The patient reports feeling very short of breath and has circumoral cyanosis. Which assessment finding does the nurse expect to find?

5 :
A staff development program on infectious disease is teaching about antibiotic sensitivity to bacterial infections. Which lab value will indicate the appropriate antibiotic to use for a specific pathogen?

6 :
Which of the following cellular processes contribute to the vasodilation associated with the vascular phase of inflammation?

8 :
A nurse is educating a patient with a newly diagnosed urinary tract infection about the treatment plan. Which statement by the patient indicates that more education is necessary?

9 :
Hay fever, asthma, hives, and anaphylaxis are all examples of which kind of hypersensitivity reaction?

10 :
Place in order the sequence of events leading to the pathogenesis of Rh isoimmunization?