Nokea
A child is undergoing testing for food allergies after experiencing unexplained signs and symptoms of hypersensitivity. What food items would the nurse inform the parents are common allergens?
- A. Citrus fruits and rice
- B. Root vegetables and tomatoes
- C. Eggs and wheat
- D. Hard cheeses and vegetable oils
Correct Answer: C
Rationale: The most common causes of food allergies are seafood (lobster, shrimp, crab, clams, fish), legumes (peanuts, peas, beans, licorice), seeds (sesame, cottonseed, caraway, mustard, flaxseed, sunflower seeds), tree nuts, berries, egg white, buckwheat, milk, and chocolate.
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An office worker takes a cupcake that contains peanut butter. He begins wheezing, with an inspiratory stridor and air hunger and the occupational health nurse is called to the office. The nurse should recognize that the worker is likely suffering from which type of hypersensitivity?
- A. Anaphylactic (type I)
- B. Cytotoxic (type II)
- C. Immune complex (type III)
- D. Delayed-type (type IV)
Correct Answer: A
Rationale: The most severe form of a hypersensitivity reaction is anaphylaxis. An unanticipated severe allergic reaction that is often explosive in onset, anaphylaxis is characterized by edema in many tissues, including the larynx, and is often accompanied by hypotension, bronchospasm, and cardiovascular collapse in severe cases. Type II, or cytotoxic, hypersensitivity occurs when the system mistakenly identifies a normal constituent of the body as foreign. Immune complex (type III) hypersensitivity involves immune complexes formed when antigens bind to antibodies. Type III is associated with systemic lupus erythematosus, rheumatoid arthritis, certain types of nephritis, and bacterial endocarditis. Delayed-type (type IV), also known as cellular hypersensitivity, occurs 24 to 72 hours after exposure to an allergen.
A patient has a documented history of allergies presents to the clinic. She states that she is frustrated by her chronic nasal congestion, anosmia (inability to smell) and inability to concentrate. The nurse should identify which of the following nursing diagnoses?
- A. Deficient Knowledge of Self-Care Practices Related to Allergies
- B. Ineffective Individual Coping with Chronicity of Condition and Need for Environmental Modification
- C. Acute Confusion Related to Cognitive Effects of Allergic Rhinitis
- D. Disturbed Body Image Related to Sequelae of Allergic Rhinitis
Correct Answer: B
Rationale: The most appropriate nursing diagnosis is Ineffective Individual Coping with Chronicity of Condition and Need for Environmental Modification. This nursing diagnosis is all encompassing of the subjective and objective data. Altered body image and acute confusion are not evidenced by the data. The patients condition is not necessary attributable to a knowledge deficit.
Which of the following individuals would be the most appropriate candidate for immunotherapy?
- A. A patient who had an anaphylactic reaction to an insect sting
- B. A child with allergies to eggs and dairy
- C. A patient who has had a positive tuberculin skin test
- D. A patient with severe allergies to grass and tree pollen
Correct Answer: D
Rationale: The benefit of immunotherapy has been fairly well established in instances of allergic rhinitis and bronchial asthma that are clearly due to sensitivity to one of the common pollens, molds, or household dust. Immunotherapy is not used to treat type I hypersensitivities. A positive tuberculin skin test is not an indication for immunotherapy.
A patient was prescribed an oral antibiotic for the treatment of sinusitis. The patient has now stopped, stating she developed a rash shortly after taking the first dose of the drug. What is the nurses most appropriate response?
- A. Encourage the woman to continue with the medication while monitoring her skin condition closely.
- B. Refer the woman to her primary care provider to have the medication changed.
- C. Arrange for the woman to go to the nearest emergency department.
- D. Encourage the woman to take an OTC antihistamine with each dose of the antibiotic.
Correct Answer: B
Rationale: On discovery of a medication allergy, patients are warned that they have a hypersensitivity to a particular medication and are advised not to take it again. As a result, the patient would need to liaise with the primary care provider. There is no need for emergency care unless symptoms worsen to involve respiratory function. An antihistamine would not be an adequate or appropriate recommendation from the nurse.
A patient is learning about his new diagnosis of asthma with the asthma nurse. What medication has the ability to prevent the onset of acute asthma exacerbations?
- A. Diphenhydramine (Benadryl)
- B. Montelukast (Singulair)
- C. Albuterol sulfate (Ventolin)
- D. Epinephrine
Correct Answer: B
Rationale: Many manifestations of inflammation can be attributed in part to leukotrienes. Medications categorized as leukotriene antagonists or modifiers such as montelukast (Singulair) block the synthesis or action of leukotrienes and prevent signs and symptoms associated with asthma. Diphenhydramine prevents histamines effect on smooth muscle. Albuterol sulfate relaxes smooth muscle during an asthma attack. Epinephrine relaxes bronchial smooth muscle but is not used on a preventative basis.