In reviewing a plan of care for a patient exhibiting the symptoms of anaphylaxis, which of the following medications would be avoided?
Antihistamines
Vasodilators
Corticosteroids
Bronchodilators
The Correct Answer is B
A) Antihistamines:
Antihistamines are commonly used in the treatment of allergic reactions, including anaphylaxis. They work by blocking the effects of histamine, which is released during an allergic reaction, and can help alleviate symptoms such as itching, hives, and nasal congestion. Antihistamines are typically included in the treatment regimen for anaphylaxis but should not be relied upon as the sole treatment.
B) Vasodilators.
Vasodilators are medications that widen blood vessels, leading to a decrease in blood pressure. In the context of anaphylaxis, where blood pressure can drop precipitously due to systemic vasodilation, the use of vasodilators can exacerbate hypotension, potentially worsening the patient's condition. Therefore, vasodilators should be avoided in the management of anaphylaxis.
C) Corticosteroids:
Corticosteroids, such as prednisone or methylprednisolone, are used in the management of anaphylaxis to reduce inflammation and prevent late-phase allergic reactions. They are not typically used as first-line treatment during the acute phase of anaphylaxis but may be administered after initial stabilization to prevent recurrence of symptoms.
D) Bronchodilators:
Bronchodilators, such as albuterol, are used to relieve bronchospasm and improve airflow in conditions such as asthma and chronic obstructive pulmonary disease (COPD). While bronchospasm can occur during anaphylaxis, bronchodilators may still be used to address this symptom. However, they should be used cautiously, and their administration should not delay the administration of epinephrine, which is the primary treatment for anaphylaxis.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A) Restlessness.
Restlessness is often one of the earliest signs of shock. It reflects the body's attempt to compensate for decreased tissue perfusion and oxygen delivery by increasing sympathetic nervous system activity. Restlessness may manifest as agitation, fidgeting, or an inability to sit still. It is an important clinical indicator that suggests impending hemodynamic instability and warrants prompt assessment and intervention.
B) Pale skin:
Pale skin is a common sign of shock, but it may not always be the earliest manifestation. Pale skin typically occurs later in the progression of shock as vasoconstriction occurs, redirecting blood flow away from the skin to vital organs in an attempt to maintain perfusion.
C) Complaints of thirst:
While complaints of thirst may indicate dehydration or fluid loss, they are not typically considered the earliest sign of shock. Thirst usually occurs after the body has already begun to experience fluid deficit and may not be apparent until shock is more advanced.
D) Complaints of nausea:
Nausea may occur in shock due to decreased perfusion to the gastrointestinal tract, but it is not usually the earliest sign. Nausea may develop as shock progresses and metabolic disturbances worsen, but it is often preceded by other symptoms such as restlessness or altered mental status.
Correct Answer is C
Explanation
A) Theophylline:
Theophylline is a bronchodilator medication that is used for the long-term management of asthma, but it is not typically used as the initial treatment for acute asthma exacerbations. Its onset of action is slower compared to short-acting beta agonists like albuterol.
B) Montelukast:
Montelukast is a leukotriene receptor antagonist that is used for the long-term management of asthma, but it is not typically used as the initial treatment for acute asthma exacerbations. Its onset of action is slower compared to short-acting beta agonists like albuterol.
C) Albuterol.
The patient is presenting with symptoms consistent with an asthma exacerbation, including shortness of breath, increased work of breathing, expiratory wheezing, and a history of asthma. Albuterol is a short-acting beta agonist bronchodilator commonly used as the first-line treatment for acute asthma exacerbations. It acts quickly to relax bronchial smooth muscles, relieve bronchoconstriction, and improve airflow, which can help alleviate the patient's symptoms of shortness of breath and wheezing.
D) Salmeterol:
Salmeterol is a long-acting beta agonist bronchodilator that is used for the maintenance treatment of asthma, but it is not typically used as the initial treatment for acute asthma exacerbations. Its onset of action is slower compared to short-acting beta agonists like albuterol, and it is not recommended for rapid relief of acute symptoms.
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