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.
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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Bradycardia, or a slower-than-normal heart rate, is not typically associated with anemia due to blood loss. Instead, anemia often leads to tachycardia (increased heart rate) as the body compensates for the reduced oxygen-carrying capacity of the blood.
B. Hypertension, or elevated blood pressure, is not a common finding in cases of anemia from blood loss. In fact, blood loss often results in hypotension (low blood pressure) due to decreased blood volume and circulating fluid.
C. Fatigue is a common symptom of anemia. As the body's ability to transport oxygen decreases due to the lack of sufficient red blood cells, the client may experience weakness, tiredness, and general fatigue, especially after surgery.
D. Diarrhea is not a typical finding associated with anemia from blood loss. While certain conditions causing anemia (such as gastrointestinal bleeding) could lead to changes in bowel habits, diarrhea itself is not a direct consequence of anemia. Instead, clients may experience symptoms more related to fluid volume status and energy levels.
Correct Answer is ["A","D","E"]
Explanation
A. It is important to place a surgical mask on the patient when transporting them to minimize the risk of spreading TB droplets in the environment. This practice helps reduce transmission during transport.
B. TB is primarily transmitted via airborne particles, not droplets. Therefore, patients with active TB should be placed on airborne precautions, not droplet precautions. Airborne precautions include the use of specialized masks and a negative airflow room to prevent the spread of infectious aerosols.
C. While a surgical mask is not adequate for protecting healthcare workers from TB, they should wear a fitted N95 respirator or a powered air-purifying respirator (PAPR) when providing care to a patient with active TB. A surgical mask does not filter out the small particles that can carry TB bacteria.
D. Patients with active TB should be placed in a private room that has negative pressure ventilation. This design helps prevent airborne TB particles from escaping into other areas of the healthcare facility, protecting other patients and staff.
E. Eye protection is recommended when collecting sputum samples from a patient with active TB, as it helps protect against potential splashes of respiratory secretions that may contain infectious droplets. This is particularly important during procedures that may aerosolize the bacteria.
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