Aminophylline is prescribed for a client with acute bronchitis. A nurse administers the medication, knowing that the primary action of this medication is to:
Relax smooth muscles of the bronchial airway.
Prevent Infection.
Suppress the cough.
Promote Expectoration.
The Correct Answer is A
Aminophylline is a bronchodilator that belongs to the xanthine derivative class of medications. It works by relaxing the smooth muscles surrounding the bronchial airways, which leads to bronchodilation. By dilating the airways, aminophylline helps to relieve bronchospasm, improve airflow, and facilitate easier breathing.
Prevent Infection: Aminophylline is not an antimicrobial medication, and its primary action is not related to preventing or treating infections.
Suppress the cough: While aminophylline may have some antitussive (cough-suppressing) effects, its primary action is bronchodilation rather than directly suppressing the cough reflex. Promote Expectoration: Aminophylline is not primarily indicated for promoting expectoration (bringing up mucus). It mainly focuses on bronchodilation to improve airflow and relieve bronchospasm.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
The pH value of 7.5 indicates alkalosis, as it is above the normal range of 7.35-7.45. The elevated bicarbonate (HCO3-) level of 34 mmol/L suggests metabolic alkalosis, as it is higher than the normal range of 22-28 mmol/L. The PaCO2 level of 40 mm Hg falls within the normal range of 35-45 mm Hg.
In this case, the primary disturbance is metabolic alkalosis, which is likely caused by the persistent vomiting leading to excessive loss of gastric acid (hydrogen ions) and chloride ions from the stomach. This loss of acid and chloride results in an imbalance of electrolytes and an increase in bicarbonate levels, leading to metabolic alkalosis.
Since there is no significant deviation from the normal range in the PaCO2 level, the respiratory system has not effectively compensated for the metabolic alkalosis. Therefore, it is considered uncompensated.
Correct Answer is D
Explanation
Chemotherapy is a treatment modality used to target and destroy rapidly dividing cells, including cancer cells. It works by interfering with the cell division process, which is a characteristic of cancer cells. However, it is important to note that chemotherapy drugs can also affect normal, healthy cells in the body that undergo rapid division, such as cells in the bone marrow, hair follicles, and gastrointestinal lining. This is why chemotherapy can be associated with side effects like bone marrow suppression, hair loss, and gastrointestinal disturbances. While the molecular structure of DNA can be altered by certain chemotherapeutic drugs, this explanation is not comprehensive enough to encompass the overall mechanism of action of chemotherapy.
The statement that "cancer cells are susceptible to drug toxins" is partially true, as cancer cells are generally more vulnerable to the cytotoxic effects of chemotherapy drugs compared to normal cells.
Chemotherapy aims to disrupt the division and growth of cancer cells rather than promoting their division.
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