Once the immediate phase of an allergic reaction subsides, no further inflammatory phase follows.
Correct Answer
False
False. A late-phase response can follow, as eosinophils and other inflammatory cells move into the tissue and prolong the inflammation after the immediate signs fade.
Category: Hypersensitivity Mechanisms
Question 2
Histamine is usually the last mediator released in an allergic reaction.
Correct Answer
False
False. Histamine is usually the first mediator released, causing redness, itching, wheals, bronchospasm and vasodilation, followed by secondary mediators such as leukotrienes.
Category: Hypersensitivity Mechanisms
Question 3
Skin test results alone should not be used to diagnose allergic rhinitis because false positive and false negative results occur.
Correct Answer
True
True. Skin tests are interpreted together with the history, physical findings and laboratory results such as serum IgE and eosinophil counts.
Category: Allergy Assessment
Question 4
When a patient reacts to a topical product, the nurse leaves the product on the skin until the provider examines it.
Correct Answer
False
False. Removing the trigger is key: the nurse washes the product off and pats the skin dry, then reports the reaction.
Category: Allergy Assessment
Question 5
Allergy immunotherapy is not started during pregnancy.
Correct Answer
True
True. Immunotherapy carries a risk of systemic reactions, so it is not begun during pregnancy, and an existing regimen is not increased.
Category: Allergic Rhinitis
Question 6
Patch testing is the preferred test during a widespread, acute dermatitis flare.
Correct Answer
False
False. Patch testing is contraindicated during widespread acute dermatitis; it is used once inflammation is controlled and avoidance alone has not worked.
Category: Allergic Skin Disorders
Question 7
Staphylococcus aureus on the skin can trigger flares of atopic dermatitis.
Correct Answer
True
True. Along with harsh soaps, sweating, rough fabrics, stress and dry air, skin colonization with this bacterium is a recognized trigger.
Category: Allergic Skin Disorders
Question 8
Chronic urticaria can be associated with thyroid disease, so thyroid testing may be ordered.
Correct Answer
True
True. A thyroid-stimulating hormone level is among the laboratory tests used when urticaria persists, because the two conditions can occur together.
Category: Allergic Skin Disorders
Question 9
Systemic corticosteroids are a preferred long-term treatment for urticaria.
Correct Answer
False
False. Systemic corticosteroids are used for more severe episodes but not long term; antihistamines and avoiding triggers are the mainstays.
Category: Allergic Skin Disorders
Question 10
Urticaria is confined to the skin and spares the mucous membranes, throat and digestive tract.
Correct Answer
False
False. The mediators released in urticaria can also affect mucous membranes, the gastrointestinal tract and the larynx, which is why hives can come with abdominal pain or a threat to the airway.
Category: Allergic Skin Disorders
Question 11
The swelling of angioedema is pitting edema.
Correct Answer
False
False. Angioedema causes non-pitting swelling of the dermis and subcutaneous tissue, often around the eyes, lips, tongue, hands and throat.
Category: Anaphylaxis and Angioedema
Question 12
Anaphylaxis can involve the skin, respiratory, cardiovascular and gastrointestinal systems at the same time.
Correct Answer
True
True. Anaphylaxis is a multisystem reaction, so hives, wheezing, hypotension and vomiting or cramping can occur together.
Category: Anaphylaxis and Angioedema
Question 13
Peanuts and tree nuts cause some of the most severe food allergy reactions.
Correct Answer
True
True. These nuts are especially likely to cause life-threatening reactions, so affected patients carry an epinephrine auto-injector and read labels carefully.
Category: Food Allergy
Question 14
In some children, skin contact alone with a food allergen can trigger a reaction.
Correct Answer
True
True. Touching the food can be enough for some children, which is why schools and caregivers need to know about the allergy.
Category: Food Allergy
Question 15
A food allergy is ruled out when symptoms begin long after a meal rather than right away.
Correct Answer
False
False. Food allergy reactions can begin soon after exposure or considerably later, so a delayed onset does not exclude allergy.
Category: Food Allergy
Question 16
Allergic contact dermatitis from latex gloves is usually caused by chemicals added during manufacturing rather than by the rubber proteins.
Correct Answer
True
True. Manufacturing chemicals usually cause this delayed skin reaction, while the rubber proteins themselves drive immediate IgE-mediated reactions.
Category: Latex Allergy
Question 17
Latex reactions are more likely when latex touches mucous membranes or enters the bloodstream than when it touches intact skin.
Correct Answer
True
True. Mucosal and parenteral exposures, such as catheters, airways or IV equipment, bring latex proteins into closer contact with the immune system than intact skin does.
Category: Latex Allergy
Question 18
Powder-free latex gloves are safe for a patient with a latex allergy.
Correct Answer
False
False. Powder-free latex gloves still contain latex proteins; a latex-allergic patient needs gloves made of materials such as vinyl or neoprene.
Category: Latex Allergy
Question 19
Rates of latex allergy have risen since powder-free and latex-free gloves became widely available.
Correct Answer
False
False. The incidence of latex allergy has declined as latex-free and powder-free gloves replaced powdered latex gloves.
Category: Latex Allergy
Question 20
A patient with a latex allergy should tell their employer and local emergency medical services about the allergy.
Correct Answer
True
True. Informing employers, health care facilities and paramedics, and carrying latex-free gloves, helps prevent exposure during emergencies.
Category: Latex Allergy