A nurse is assessing a client who was stung by a bee 30 minu… | 마이메르시 MyMerci
Adult Health
문제
A nurse is assessing a client who was stung by a bee 30 minutes ago. Which assessment finding would be the priority concern indicating a systemic allergic reaction?
1Stridor and difficulty breathing✓ 정답
2Localized swelling at the sting site
3Mild itching around the wound
4Pain and redness at the sting site
해설
Stridor and difficulty breathing indicate laryngeal edema and bronchospasm, which are life-threatening manifestations of anaphylaxis requiring immediate intervention. Localized swelling, itching, pain, and redness are non-life-threatening local reactions manageable with supportive care.
심화 해설
Core Nursing Explanation
This question tests the nurse's ability to recognize the priority assessment finding in a potential anaphylactic reaction. The core concept is Key Point!Airway, Breathing, and Circulation (ABC) as the primary framework for assessment and intervention. A systemic allergic reaction (anaphylaxis) is a medical emergency where the body's massive release of histamine and other mediators causes widespread vasodilation, increased capillary permeability, and smooth muscle contraction.
Key Concept Analysis: The question centers on differentiating between a local allergic reaction and a systemic, life-threatening anaphylactic reaction. A local reaction involves symptoms confined to the sting site due to histamine release in that area. Anaphylaxis involves a systemic response affecting multiple organ systems, most critically the respiratory and cardiovascular systems.
Answer Rationale: Key Point!Stridor and difficulty breathing are the correct answer because they signal upper airway obstruction (laryngeal edema) and/or lower airway bronchospasm. These are the most immediate threats to life in anaphylaxis, as they can rapidly lead to hypoxia, respiratory arrest, and death. This finding requires Key Point! immediate administration of epinephrine and activation of emergency protocols.
Distractor Analysis:
Watch out for confusion! Options ②, ③, and ④ all describe localized reactions. While uncomfortable for the patient, they do not indicate systemic involvement or imminent threat to life. Managing these would involve cleaning the site, applying a cold compress, and administering oral antihistamines (e.g., diphenhydramine) or analgesics as ordered—actions that are important but not the priority when a life-threatening condition is present.
Related Concepts: Other signs of systemic anaphylaxis include hypotension (due to vasodilation and fluid shift), tachycardia, generalized urticaria (hives), angioedema (swelling of lips, tongue, eyelids), feeling of impending doom, dizziness, and gastrointestinal symptoms like nausea and vomiting. The nurse must assess for all these, but respiratory compromise is always the top priority.
임상 시나리오
Nursing Clinical Practice GuideClinical Scenario: You are a nurse in an urgent care clinic. A 25-year-old male patient runs in, pointing to his neck and saying, "I got stung by a bee about 20 minutes ago while gardening, and now my throat feels tight and it's hard to breathe." You observe audible stridor, use of accessory muscles, and anxious demeanor.
Nursing Intervention Strategy:
1. Immediate Assessment & Action (ABCs): Your first action is to call a code or alert the emergency team. While waiting, position the patient upright to ease breathing, administer high-flow oxygen via non-rebreather mask, and prepare to assist with intubation if needed.
2. Medication Administration: The priority drug is epinephrine (1:1000), typically given intramuscularly (IM) in the mid-anterolateral thigh. You would prepare and administer this immediately per protocol or physician order. Epinephrine works by constricting blood vessels (raising BP), relaxing bronchial smooth muscle (easing breathing), and stabilizing mast cells.
3. Secondary Interventions: After epinephrine, establish IV access for fluid resuscitation (to treat hypotension) and administer adjunctive medications: IV corticosteroids (e.g., methylprednisolone) to prevent a delayed reaction, and IV antihistamines (e.g., diphenhydramine and famotidine).
4. Monitoring & Support: Continuously monitor vital signs, oxygen saturation, lung sounds, and level of consciousness. The patient may need to be transferred to an emergency department for continued observation.
Patient Safety and Precautions: Never delay epinephrine administration. Instruct patients with known severe allergies to always carry an epinephrine auto-injector (EpiPen). After an anaphylactic event, patient education is crucial: avoid the allergen, wear medical alert identification, and ensure they know how and when to use their auto-injector.
Nursing Procedure & Medication FlowEpinephrine Administration for Anaphylaxis:
1. Confirm the order or follow standing protocol for anaphylaxis.
2. Obtain epinephrine 1:1000 solution (1 mg/mL).
3. Draw up 0.3-0.5 mg (0.3-0.5 mL for an adult) into a 1 mL syringe.
4. Administer IM into the vastus lateralis (thigh) muscle. This route provides rapid absorption.
5. Massage the injection site gently to promote absorption.
6. Monitor the patient closely for effect and for side effects (tachycardia, hypertension, anxiety).
7. Be prepared to repeat the dose in 5-15 minutes if symptoms persist.
8. Document the time, dose, route, site, and patient response.
A Word from Your Senior Nurse
"In the chaos of an emergency, your training kicks in. Remember your ABCs—they are your anchor. For anaphylaxis, think: Tight Throat + Trouble Breathing = Time for Epinephrine. On the NCLEX, they love to test if you can sift through multiple symptoms and pick the one that signals 'act now or the patient could die.' In real life, recognizing that stridor early and acting decisively is what saves lives. Don't get distracted by the obvious local symptoms; look for the signs of systemic collapse. That's the difference between being a task-completer and being a life-saving nurse."
핵심 개념
Anaphylaxis — A severe, life-threatening systemic allergic reaction characterized by rapid onset and involving multiple organ systems, most notably respiratory compromise (bronchospasm, laryngeal edema) and cardiovascular collapse (hypotension, shock).
Stridor — A high-pitched, crowing sound heard on inspiration, indicative of partial upper airway obstruction, often due to laryngeal or tracheal edema.
Epinephrine — The first-line medication for anaphylaxis. It acts as an alpha- and beta-adrenergic agonist, causing vasoconstriction (to raise blood pressure), bronchodilation (to ease breathing), and stabilization of mast cells to halt further mediator release.
Laryngeal Edema — Swelling of the tissues in the larynx (voice box), a critical manifestation of anaphylaxis that can rapidly progress to complete airway obstruction and asphyxiation.
Local Allergic Reaction — An inflammatory response confined to the site of allergen exposure (e.g., insect sting), presenting with pain, redness, swelling (wheal), and itching. It does not involve systemic symptoms or threaten the airway.
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