Q&A Week 1-4
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,Characteristics of Systolic HF: B, D, E, G
A. Heart failure with ejection fraction ≥ 50%
B. Heart failure with ejection fraction ≤ 40%
C. Pulmonary congestion without cardiomegaly on chest
X-ray
D. Pulmonary congestion with cardiomegaly on chest X-
ray
E. Increased size of left ventricle
F. Decreased size of left ventricle
G. S3 gallop
H. S4 gallop
In a primary care office, a nurse practitioner (NP) Urticaria, wheezing, vomiting, and diaphoresis
assesses a client who reports taking a new medication Immediate hypersensitivity is mediated by IgE antibodies, which result in an
30 minutes before arrival. The NP is concerned that the allergy, anaphylaxis, or atopic disease. The NP should expect the client to have a
client may be having a hypersensitivity reaction. Which type 1 hypersensitivity to recent medication use, which can include these
clinical manifestations should the NP expect immediate reactions as clinical manifestations: urticaria, wheezing, vomiting, and
Hypertension diaphoresis.
Wheezing Hypertension and bradycardia are not associated with immediate hypersensitivity
Bradycardia reactions.
Diaphoresis
Urticaria
Vomiting
____________ are the primary effector cells and Mast cells are the primary effector cells and responsible for initiating and
responsible for initiating and mediating _____________ mediating type 1 hypersensitivity reactions.
hypersensitivity.
Eosinophils, Neutrophils, Mast cells, or T-cells Characterized by the rapid release of proinflammatory mediators like histamine,
Type 1, 2, 3, or 4 leukotrienes, and cytokines in response to allergen exposure, mast cells are the
primary effector cells responsible for initiating and mediating type 1
hypersensitivity reactions.
____________ hypersensitivity reactions involve the Type 3 hypersensitivity reactions involve the formation of immune complexes that
formation of _____________ that can deposit in tissues, can deposit in tissues, leading to complement activation, inflammation, and
leading to complement activation, inflammation, and tissue destruction.
tissue destruction.
Type 1, 2, 3, or 4 Type 3 hypersensitivity reactions involve the formation of immune complexes that
IgE, IgM, IgG, immune complexes can deposit in tissues, leading to complement activation and inflammation. This
process can cause tissue damage and is associated with systemic lupus
erythematosus (SLE) and serum sickness.
Type 1 reactions are mediated by IgE antibodies, and type 2 are mediated by
IgG or IgM antibodies. Type 4 reactions are activated by T-helper cells.
Highlight the finding(s) the nurse practitioner (NP) cough, wheezing, SOB, gradual onset, outside, eczema, dog
recognizes as risk factors that may contribute to the
client's new diagnosis of allergic rhinitis. Select all that Allergic rhinitis attacks are related to ongoing exposure to specific offending
apply. agents. The strongest risk factor for developing asthma is a history of atopic
disease (the client has eczema, a form of atopic dermatitis). Environmental
Camille Rutherford, 45-years-old factors and allergens—such as high humidity, cold, dry weather, house dust
Chief Complaint: red, dry, itchy skin on arms and legs, mites, pet fur, and pollen—can place a client at risk for a new diagnosis of
shortness of breath, wheezing, and cough allergic asthma.
Medical History: presents with a nonproductive cough, With prior exposure to allergens, Camille was sensitized. Chronic exposure to
expiratory wheezing, and shortness of breath upon allergens mediated IgE antibodies to attach to sensitized cells, and with further
exertion; reports a gradual onset of these symptoms and exposure, IgE caused sensitized cells to degranulate. When degranulation
mentioned that they have been progressively worsening occurs, inflammatory mediators like histamine, leukotrienes, and prostaglandins
when walking their dog outside are released to produce several effects on the body, such as shortness of breath
Past Medical History: eczema, hypertension and wheezing. Constriction of bronchial smooth muscle also occurs, which
Social History: lives at home with daughter and their dog explains her respiratory symptoms: shortness of breath, cough, and wheezing.
The NP can diagnose the client with a type I hypersensitivity reaction based on
localized and systemic symptoms.
The client's age and history of hypertension are not risk factors.
A 25-year-old presents to the emergency department C.
(ED) with symptoms of ongoing weight loss, rapid heart Graves' disease is an example of a type 2 hypersensitivity reaction in which the
rate, bilateral neck swelling, and hand tremors. Family immune system produces autoantibodies, particularly IgG antibodies, that bind to
medical history reveals a history of thyroid disorders. and stimulate the thyroid-stimulating hormone (TSH) receptor on thyroid follicular
Physical examination and laboratory tests confirm the cells. This leads to excessive thyroid hormone production, hyperthyroidism, and
diagnosis of Graves' disease. Which mechanism below the characteristic symptoms observed in the client. Cytotoxic antibodies target
best explains the pathophysiology of Graves' disease? specific cell surface antigens (in this case, the TSH receptor), resulting in cellular
A. Delayed-type hypersensitivity response in the thyroid dysfunction rather than cell destruction.
gland
B. Activation of complement proteins leading to tissue
damage
C. Production of autoantibodies targeting the thyroid-
stimulating hormone receptor
D. Formation of immune complexes in the thyroid tissue
, Pathophysiological processes of a type 3 immune 1. Antibodies bind to antigens
complex hypersensitivity into the correct order. 2. Immune complexes form
3. Complexes deposit in blood vessels or tissues
4. Activation of complement
5. Inflammatory response at the site of deposit
6. Release of lysosomal enzymes and chemical mediators
7. Tissue damage
A client presented to the primary care office with a C.
generalized rash and epidermal blistering from contact Type 4 hypersensitivity reactions are T cell-mediated delayed hypersensitivity
exposure to poison ivy two days ago. What clinical reactions, have a delayed onset, and the rash is often characterized by
manifestations should the NP consider to differentiate a epidermal blistering. T-cells are central in recruiting other immune cells and
type 1 hypersensitivity rash from a type 4 hypersensitivity causing inflammation in response to an antigen.
rash? Type 1 hypersensitivity reactions typically involve activating mast cells and
A. Type 1 hypersensitivity rash is usually associated with basophils, releasing histamine and other inflammatory mediators. This can result
contact dermatitis, while the rash in a type 4 in localized erythema (redness) and the formation of hives or urticaria.
hypersensitivity reaction is commonly seen in allergic
reactions.
B. Type 1 hypersensitivity rash is often localized and
erythematous, whereas the rash in type 4
hypersensitivity is generalized and pruritic.
C. Type 1 hypersensitivity rash often involves hives or
urticaria, while a delayed onset, epidermal blistering rash
characterizes a type 4 reaction.
D. Type 1 hypersensitivity rash results from T-cell-
mediated inflammation, whereas the rash in a type 4
hypersensitivity reaction is primarily due to the activation
of mast cells
Which type of hypersensitivity reaction are Allergic Type 1, IgE mediated
rhinitis, Hay fever, Asthma, Anaphylaxis, Food allergies?
T helper 2 cells produce high levels of interleukin-4, leading to B-cell activation
and subsequent plasma cell production of IgE antibody. IgE binds to mast cell
receptors resulting in their immediate degranulation and release of histamine,
leukotrienes, and other inflammatory mediators.
Which type of hypersensitivity reaction are Autoimmune Type 2, Tissue-specific reaction
hemolytic anemia, HIT, Graves' disease, Myasthenia
gravis, blood transfusion and Rh factor incompatibility, Altered self-antigens on tissues are bound by autoantibodies resulting in tissue
blood transfusion? destruction by complement, macrophages, neutrophils, or natural killer cells.
Some autoantibodies bind to hormone or neurotransmitter receptors causing
decreased or increased receptor activation.
Which type of hypersensitivity reaction are SLE, Type 3, Immune complex
glomerulonephritis, Arthus reaction, RA, serum sickness,
Raynaud phenomenon? Antibodies are formed to circulating antigens resulting in the formation of immune
complexes that deposit in tissues. These immune complexes activate
complement and neutrophils resulting in tissue destruction.
Which type of hypersensitivity reaction are Contact Type 4, cell-mediated
sensitivity to poison ivy and latex, Mycobacterial
infection, organ transplant rejection, contact dermatitis, T helper 1 cells produce interferon gamma resulting in the activation of
positive tuberculin skin test, DM1, latex? macrophages and T cytotoxic cells that attack the target cell through the release
of destructive enzymes. In some cases, destruction of an invader is not possible,
and granuloma formation walls it off from the rest of the body.
The chronological order of the stages of human 1. Acute HIV infection:
immunodeficiency virus (HIV) infection is After initial infection, the acute HIV infection stage occurs first, typically 2-3
weeks after infection, characterized by high viral replication and dissemination
throughout the body with the client potentially experiencing nonspecific flu-like
symptoms as the immune system begins to respond to the virus.
2. Clinical latency:
Clinical latency is the second stage of HIV infection, which can last for a year or
more. This stage is characterized by low levels of HIV replication and persistent
immune activation, with CD4+ helper T cell counts gradually declining. The client
may not experience symptoms during this stage.
3. AIDS:
AIDS is the final and most severe stage of infection, where the immune system is
badly damaged. AIDS is characterized by a CD4+ T cell count below 200
cells/mm3 with the body becoming vulnerable to opportunistic infections,
opportunistic malignancies, and neurological complications. Without treatment,
survival time averages 3 years.