Which statement describes the action of a beta-adrenergic agent for a patient with a respiratory disorder such as asthma?

Bronchodilation.

Decrease in peak expiratory flow.

Thinner respiratory secretions.

Increase in respiratory rate.

Answer and Explanation

The Correct Answer is A

A.   Beta-adrenergic agents (often called bronchodilators) work by stimulating beta-2 adrenergic receptors in the airway smooth muscle, leading to relaxation of the muscles and dilation of the airways. This helps improve airflow and relieve symptoms of asthma.
B.   A beta-adrenergic agent should ideally increase peak expiratory flow (PEF) by dilating the airways and improving airflow, not decrease it.
C.   This is not a direct action of beta-adrenergic agents. While some medications (like mucolytics or certain expectorants) can thin secretions, beta-adrenergic agents primarily focus on bronchodilation and do not significantly affect the viscosity of respiratory secretions.
D.   While beta-adrenergic agents can sometimes cause mild tachycardia (increased heart rate) as a side effect, they are not intended to increase the respiratory rate directly. The primary goal of these medications is to improve airway patency rather than change the rate of breathing.

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Correct Answer is C

Explanation

A. Rhonchi are abnormal lung sounds that result from obstruction or secretions in larger airways. They are more commonly associated with conditions like chronic bronchitis or COPD rather than tuberculosis. While TB can lead to various lung sounds, rhonchi are not a hallmark of the disease.
B. Weight gain is generally not associated with tuberculosis. In fact, TB often leads to weight loss due to factors like loss of appetite, increased metabolic demand, and systemic effects of the infection. Patients with active TB frequently present with cachexia (wasting) or weight loss, not weight gain.
C. Hemoptysis, or coughing up blood, is a significant and classic symptom associated with tuberculosis, especially in cases involving pulmonary TB. It occurs due to the erosion of blood vessels in the lungs as the disease progresses. This makes it a strong correlating finding with a diagnosis of tuberculosis.
D. Frothy sputum is more characteristic of pulmonary edema or conditions such as congestive heart failure. In tuberculosis, sputum may be mucoid or purulent and sometimes contains blood, but it is not typically described as frothy.

Correct Answer is ["3.4"]

Explanation

1 pound is approximately 0.453592 kilograms.

25 pounds * 0.453592 kg/pound = 11.3398 kg Calculate the total daily dosage:

15 mg/kg/12 hours * 11.3398 kg = 170.097 mg/12 hours

170.097 mg/12 hours * 2 doses/day = 340.194 mg/day Determine the amount of elixir needed per dose:

250 mg/5 mL = 50 mg/mL (strength of the elixir)

340.194 mg/day ÷ 2 doses/day = 170.097 mg/dose

170.097 mg/dose ÷ 50 mg/mL = 3.4 mL/dose

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Which statement describes the action of a beta-adrenergic agent for a patient with a respiratory disorder such as asthma?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

The nurse is assessing a patient who is diagnosed with tuberculosis. Which assessment finding correlates with this diagnosis?

Correct Answer is C

Explanation

Correct Answer is ["3.4"]

Explanation

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