Which statement defines total lung capacity?
It is the air in the lungs after maximal inhalation.
It is the quantity of air that a person can move into or out of the lungs.
It is the amount of air that remains in the lungs after a normal tidal expiration.
It is the maximum volume of air that can be exhaled from the lungs after maximum inhalation.
The Correct Answer is A
A. It is the air in the lungs after maximal inhalation: Total lung capacity (TLC) refers to the total amount of air the lungs can hold after maximum inhalation.
B. It is the quantity of air that a person can move into or out of the lungs: This defines vital capacity, not total lung capacity.
C. It is the amount of air that remains in the lungs after a normal tidal expiration: This describes functional residual capacity, not TLC.
D. It is the maximum volume of air that can be exhaled from the lungs after maximum inhalation: This is the definition of vital capacity (VC), not total lung capacity.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. The testes would not maintain the proper temperature: Temperature regulation of the testes is controlled by the scrotum and muscles, not the prostate.
B. The flow of urine may be blocked or slowed: Benign prostatic hyperplasia (BPH), or an enlarged prostate, can compress the urethra, leading to difficulty urinating or weak urine flow.
C. Seminal fluid would not have the proper pH: The prostate contributes fluids to semen, but BPH typically affects urine flow more than seminal fluid pH.
D. Sperm would not be allowed to fully mature: Sperm maturation occurs in the epididymis, not in the prostate.
Correct Answer is B
Explanation
A. Superior vena cava: The superior vena cava carries deoxygenated blood back to the heart, and pressure here is low.
B. Ascending aorta: The ascending aorta is where blood is ejected from the left ventricle, leading to the highest pressure in the circulatory system.
C. Abdominal aorta: While the pressure is still high in the abdominal aorta, it is lower compared to the ascending aorta.
D. Pulmonary trunk: The pulmonary trunk carries blood to the lungs, and the pressure is lower compared to the systemic circulation.
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