A nurse cares for a patient who is prescribed nasal fluticasone.
Which teaching is most appropriate for the patient?

Choice A rationale

Immunoglobulin A (IgA) is the predominant antibody found in mucosal secretions like saliva, tears, breast milk, and gastrointestinal fluid, providing local mucosal immunity against ingested or inhaled pathogens. While vital for defense, IgA does not typically trigger the systemic mast cell degranulation and massive mediator release characteristic of anaphylaxis.

Choice B rationale

Immunoglobulin E (IgE) is the antibody that mediates Type I hypersensitivity reactions, including anaphylaxis. IgE is bound to the surface of mast cells and basophils. Upon re-exposure to a specific antigen (allergen), cross-linking of these IgE molecules triggers a massive, rapid release of pre-formed mediators, such as histamine and leukotrienes, causing the severe, systemic symptoms like profound vasodilation and bronchoconstriction.

Choice C rationale

Immunoglobulin G (IgG) is the most abundant antibody in plasma, providing long-term humoral immunity and crossing the placenta to confer passive immunity to a fetus. It is a primary mediator of Type II and Type III hypersensitivity reactions. Although it can activate the complement cascade, IgG does not play the principal role in the immediate, IgE-driven pathogenesis of anaphylaxis.

Choice D rationale

Immunoglobulin M (IgM) is the largest antibody, often existing as a pentamer, and is the first antibody produced during a primary immune response, primarily located in the blood and lymph fluid. It is highly effective at activating the complement system and agglutination but is not the specific key mediator responsible for initiating the rapid mast cell degranulation that defines anaphylaxis.

Choice A rationale

Scanning the patient's ID band confirms the identity of the patient using two identifiers, a crucial step in the "five rights" of medication administration to ensure the drug is given to the correct individual and to integrate with electronic health records.

Choice B rationale

Calling the patient's name three times is not a standard, evidence-based procedure for medication safety; standard protocol requires using at least two forms of patient identification (e.g., name, date of birth, medical record number).

Choice C rationale

Taking a screenshot of a medication order is a deviation from proper documentation and is not an essential action; the order must be viewed and verified within the secure electronic health record (EHR) or patient chart.

Choice D rationale

Assessing the patient prior to administration is essential to establish a baseline, determine if the medication is still appropriate based on the patient's current condition (e.g., vital signs, lab values), and check for contraindications.

Choice E rationale

Verifying medication allergies is a mandatory safety step to prevent life-threatening anaphylactic or hypersensitivity reactions, aligning with the "right patient" and "right drug" components of medication safety.

Choice F rationale

Performing hand hygiene (handwashing or alcohol-based hand rub) is necessary immediately before patient contact and medication preparation to comply with infection control guidelines and prevent the transmission of microorganisms.