The nurse is caring for a client with a history of deep vein thrombosis. Which intervention should the nurse include in the care plan?

Choice A reason: Monitoring oxygen saturation is critical in COPD, as oxygen therapy aims to maintain saturation (88–92%) to prevent hypoxia. Pulse oximetry ensures adequate oxygenation, guiding therapy adjustments, making it the priority assessment to prevent respiratory failure and optimize lung function.

Choice B reason: Checking skin color assesses cyanosis but is less precise than oxygen saturation. Pulse oximetry provides objective data on oxygenation in COPD, guiding oxygen therapy, making it the priority over subjective visual assessments, which are secondary to quantitative measures.

Choice C reason: Assessing chest pain is relevant for cardiac issues but not the primary concern in COPD oxygen therapy. Oxygen saturation directly evaluates therapy effectiveness, preventing hypoxia, making it the priority assessment to ensure respiratory stability in chronic lung disease.

Choice D reason: Measuring blood pressure monitors cardiovascular status but is secondary to oxygenation in COPD. Oxygen saturation is critical, as hypoxia exacerbates respiratory distress, requiring immediate assessment to adjust oxygen therapy, making it the priority over hemodynamic evaluations.

Choice A reason: An IgE-mediated (Type I) hypersensitivity reaction, like anaphylaxis, occurs post-bee sting, with rapid onset of rash, shortness of breath, hypotension, and tachycardia. IgE antibodies trigger mast cell degranulation, releasing histamine, causing vasodilation, bronchoconstriction, and systemic symptoms, matching the client’s acute presentation.

Choice B reason: Cell-mediated (Type IV) hypersensitivity involves T-cells, causing delayed reactions like contact dermatitis, not rapid systemic symptoms. Bee sting reactions are immediate, driven by IgE, not T-cells. Rash, hypotension, and respiratory distress indicate anaphylaxis, not a delayed cell-mediated response.

Choice C reason: Autoimmune responses involve self-directed antibodies, as in lupus, not triggered by external allergens like bee stings. The client’s acute rash, hypotension, and respiratory distress suggest an IgE-mediated anaphylactic reaction, not an autoimmune process, which is unrelated to acute allergen exposure.

Choice D reason: Type II hypersensitivity involves antibody-mediated cytotoxicity, as in transfusion reactions, not allergen-induced systemic symptoms. Bee sting reactions are IgE-driven, causing immediate anaphylaxis with rash and hypotension, not cytotoxic damage, making Type II inappropriate for the client’s acute presentation.