Question

The 32-year-old African American male with sickle cell disease will most likely experience a sickle cell crisis as a result of which condition:

Answer 1

Correct Answers:

pneumonia with fever

Rationale :

🔷 A sickle cell crisis is often triggered by conditions that cause hypoxia, infection, or dehydration.

🔷 Pneumonia with fever decreases oxygenation and increases metabolic demand, which promotes sickling of red blood cells, leading to vascular occlusion and severe pain.

🔷 Infections are one of the most common precipitating factors of crisis because they intensify hypoxia and inflammation.

🔷 Early recognition and treatment of infections are critical to prevent life-threatening complications such as acute chest syndrome or stroke in patients with sickle cell disease.

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Answer 2

Correct Answers:

fomite

Rationale :

💠 A fomite is any inanimate object (such as needles, syringes, stethoscopes, or bed linens) that can carry and transmit infectious microorganisms.

💠 Contaminated medical equipment is a well-known source of healthcare-associated infections, making strict adherence to infection control and sterilization practices essential.

💠 In contrast, vectors are living organisms (like mosquitoes or ticks) that transmit disease, while zoonoses are infections spread from animals to humans.

💠 Recognizing a contaminated needle as a fomite highlights the importance of proper disposal of sharps to prevent infection transmission.

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Answer 3

Correct Answers:

inability to mount a normal immune response

Rationale :

⭐ HIV infection weakens the immune system, specifically impairing CD4 T-lymphocytes, which are necessary for a strong delayed-type hypersensitivity response.

⭐ The tuberculin skin test (TST/PPD) relies on the body’s ability to mount an immune reaction to Mycobacterium tuberculosis antigens.

⭐ In HIV patients, even if they were previously infected or exposed, the response may be blunted or absent (anergy), leading to a false-negative test.

⭐ This is why additional screening methods, such as chest X-rays or interferon-gamma release assays (IGRA), may be recommended in immunocompromised clients.

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Answer 4

Correct Answers:

an interruption in immune system's self-tolerance to antigens

Rationale :

✨ Autoimmune systemic diseases occur when the immune system fails to recognize self from non-self, leading it to attack the body’s own tissues.

✨ Normally, the immune system has mechanisms of self-tolerance that prevent antibodies and T-cells from targeting the body’s own cells.

✨ When this tolerance is interrupted, autoantibodies and autoreactive T-cells cause chronic inflammation and tissue destruction, as seen in systemic lupus erythematosus (SLE), rheumatoid arthritis, and multiple sclerosis.

✨ This process differs from allergies (overreaction to external allergens) and viral infections like HIV (which destroy CD4 T-lymphocytes).

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Answer 5

Correct Answers:

increase in vascular permeability

Rationale :

💠 During a local inflammatory response, mast cells release histamine, a chemical mediator that causes vasodilation and increased capillary permeability.

💠 The rise in vascular permeability allows plasma, proteins, and white blood cells to move from the bloodstream into the injured tissue, producing edema, warmth, and redness.

💠 This process helps deliver immune cells and nutrients needed for healing and pathogen defense.

💠 While beneficial for repair, excessive histamine release can also contribute to allergic reactions and anaphylaxis.

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Answer 6

Correct Answers:

infection is present

Rationale :

💠 IgM is the first immunoglobulin produced by the body in response to infection. Unlike IgG, which crosses the placenta from mother to fetus, IgM does not cross the placenta.

💠 Therefore, if a neonate shows elevated IgM, it means the baby’s own immune system is actively producing antibodies, indicating an intrauterine or neonatal infection.

💠 Normal neonates do not have elevated IgM unless they are responding to a pathogen, making this finding clinically significant in a sick newborn.

💠 Early recognition of elevated IgM guides healthcare providers to initiate further evaluation and treatment for infection to prevent complications.

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Answer 7

Correct Answers:

passive-acquired

Rationale :

🟢 Passive-acquired immunity occurs when a person receives ready-made antibodies rather than producing them through their own immune system.

🟢 In breastfeeding, IgA immunoglobulins from the mother’s breast milk provide localized protection against gastrointestinal infections in the infant.

🟢 This type of immunity is temporary but critical, as infants have an immature immune system and rely on maternal antibodies for early defense.

🟢 Unlike active immunity (where the infant develops antibodies after exposure or vaccination), passive-acquired immunity offers immediate but short-term protection.

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Answer 8

Correct Answers:

This is the result of mast cell activity

Rationale :

🌟 Hives (urticaria) and itching (pruritus) are classic signs of a Type I hypersensitivity reaction, which is immediate and IgE-mediated.

🌟 In this process, exposure to an allergen (such as peanuts) causes mast cells and basophils to release histamine and other mediators, leading to vasodilation, increased vascular permeability, and itching.

🌟 This reaction is not a normal immune response—it indicates an allergic reaction that may progress to more severe forms such as anaphylaxis if untreated.

🌟 Recognizing mast cell involvement helps guide interventions such as antihistamines, corticosteroids, or epinephrine depending on severity.

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Answer 9

Correct Answers:

antibody destruction of platelets

Rationale :

🔴 In immune thrombocytopenic purpura (ITP), the immune system produces autoantibodies that bind to circulating platelets.

🔴 These antibody-coated platelets are then destroyed by the spleen, leading to thrombocytopenia (low platelet count).

🔴 The hallmark symptoms—hematuria, menorrhagia, bleeding gums, and petechiae—arise from impaired clotting due to insufficient platelets.

🔴 ITP is an autoimmune disorder, not caused by allergies, direct T-cell injury to megakaryocytes, or hypersplenism alone.

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Answer 10

Correct Answers:

True

Rationale :

🌟 Granulation tissue is new connective tissue and microscopic blood vessels that form during the proliferative phase of wound healing.

🌟 It appears as red, moist, and bumpy tissue, indicating that the wound is well-vascularized and healing properly.

🌟 The growth of granulation tissue provides a foundation for epithelialization and eventual wound closure.

🌟 Its presence is a positive sign, reflecting active tissue repair and reduced risk of infection if protected and managed appropriately.

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PATHOPHYSIOLOGY EXAM 1 WEEK 8^J9^J10

No.

1 :
The 32-year-old African American male with sickle cell disease will most likely experience a sickle cell crisis as a result of which condition:

2 :
A contaminated needle and syringe that spreads infection is known as a:

3 :
The student nurse understands that the HIV patient with a history of TB/treatment may not have a positive response to a tuberculin (TB) skin test. The reason is:

4 :
Autoimmune systemic diseases damage body tissues as the result of:

5 :
In a local active injury, when mast cells release histamine, the response is:

6 :
The student nurse is caring for a toxic-appearing neonate having difficulty with breast-feeding. The neonate's mother is very concerned. The student nurse reviewed the latest laboratory results that show IgM is elevated in the immunoglobulin assay. The student nurse interprets this to mean:

7 :
When immunoglobulin crosses through to breast milk and protects the infant against gastrointestinal infection, this is called

8 :
The patient developed hives and itching. The nurse knows that:

9 :
A 30-year-old female presents with hematuria, menorrhagia, and bleeding gums. She is diagnosed with immune thrombocytic purpura (ITP). The most likely cause is:

10 :
The presence of granulation tissue is a desired observation during wound healing

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PATHOPHYSIOLOGY EXAM 1 WEEK 8^J9^J10

No.

1 : The 32-year-old African American male with sickle cell disease will most likely experience a sickle cell crisis as a result of which condition:

2 : A contaminated needle and syringe that spreads infection is known as a:

3 : The student nurse understands that the HIV patient with a history of TB/treatment may not have a positive response to a tuberculin (TB) skin test. The reason is:

4 : Autoimmune systemic diseases damage body tissues as the result of:

5 : In a local active injury, when mast cells release histamine, the response is:

6 : The student nurse is caring for a toxic-appearing neonate having difficulty with breast-feeding. The neonate's mother is very concerned. The student nurse reviewed the latest laboratory results that show IgM is elevated in the immunoglobulin assay. The student nurse interprets this to mean:

7 : When immunoglobulin crosses through to breast milk and protects the infant against gastrointestinal infection, this is called

8 : The patient developed hives and itching. The nurse knows that:

9 : A 30-year-old female presents with hematuria, menorrhagia, and bleeding gums. She is diagnosed with immune thrombocytic purpura (ITP). The most likely cause is:

10 : The presence of granulation tissue is a desired observation during wound healing

1 :
The 32-year-old African American male with sickle cell disease will most likely experience a sickle cell crisis as a result of which condition:

2 :
A contaminated needle and syringe that spreads infection is known as a:

3 :
The student nurse understands that the HIV patient with a history of TB/treatment may not have a positive response to a tuberculin (TB) skin test. The reason is:

4 :
Autoimmune systemic diseases damage body tissues as the result of:

5 :
In a local active injury, when mast cells release histamine, the response is:

6 :
The student nurse is caring for a toxic-appearing neonate having difficulty with breast-feeding. The neonate's mother is very concerned. The student nurse reviewed the latest laboratory results that show IgM is elevated in the immunoglobulin assay. The student nurse interprets this to mean:

7 :
When immunoglobulin crosses through to breast milk and protects the infant against gastrointestinal infection, this is called

8 :
The patient developed hives and itching. The nurse knows that:

9 :
A 30-year-old female presents with hematuria, menorrhagia, and bleeding gums. She is diagnosed with immune thrombocytic purpura (ITP). The most likely cause is:

10 :
The presence of granulation tissue is a desired observation during wound healing