Which of the following breathing patterns would result in the greatest increase in blood acidity?
Tachypnea
Dyspnea
Hyperpnea
Apnea
The Correct Answer is D
A. Tachypnea refers to rapid breathing. While it can affect the balance of gases in the blood, it typically leads to decreased CO₂ levels, which would actually reduce blood acidity (increase pH).
B. Dyspnea refers to difficult or labored breathing. It can be associated with respiratory distress, but it does not directly cause significant changes in blood acidity.
C. Hyperpnea is characterized by increased depth and rate of breathing, often to meet metabolic demands, like during exercise. This typically decreases CO₂ levels, which can lead to a reduction in blood acidity (increase in pH).
D. Apnea, which is the cessation of breathing, would lead to a buildup of CO₂ in the blood because the body is not expelling it through normal respiration. This increase in CO₂ would combine with water to form carbonic acid, thereby lowering blood pH and increasing acidity.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Bronchioles are smaller branches of the bronchial tree that come after the bronchi. They are not formed directly from the trachea.
B. The hilum is a region on the lung’s surface where structures like bronchi, blood vessels, and nerves enter or exit—but it is not a branch of the trachea.
C. The bronchus (plural: bronchi) is one of the two primary branches that the trachea divides into—right and left primary bronchi—which lead into each lung.
D. The conchae (or turbinates) are bony structures inside the nasal cavity that help filter and humidify air, but they are not related to the branching of the trachea.
Correct Answer is A
Explanation
A. Bronchodilators are medications specifically designed to relax the muscles around the airways, making it easier to breathe by increasing airflow. They are commonly used in conditions like asthma and chronic obstructive pulmonary disease (COPD).
B. Doxycycline is an antibiotic used to treat bacterial infections. It has no direct effect on airway muscles or airflow.
C. ACE inhibitors are used primarily to treat high blood pressure and heart failure. They do not act on the airways and are not used to improve airflow.
D. Anti-androgen therapy is used to reduce levels of male hormones, typically in the treatment of prostate cancer or hormone-sensitive conditions. It has no role in bronchodilation or respiratory therapy.
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