Which of the following constitutes total lung volume?
Residual volume and vital capacity
Tidal volume, inspiratory reserve volume, and expiratory reserve volume
Residual volume and tidal volume
Vital capacity and tidal volume
The Correct Answer is A
A. Residual volume and vital capacity: Total Lung Capacity (TLC) is the sum of every bit of air the lungs can hold. Vital capacity is the maximum air you can move, and residual volume is what remains after you exhale as hard as possible.
B. Tidal volume, inspiratory reserve volume, and expiratory reserve volume: This sum equals the vital capacity, but it misses the residual volume.
C. Residual volume and tidal volume: This is only a small portion of the total capacity.
D. Vital capacity and tidal volume: This is redundant, as tidal volume is already included within the calculation of vital capacity.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is {"dropdown-group-1":"D"}
Explanation
A. Spectrin: This is a cytoskeletal protein that gives red blood cells their flexibility.
B. Erythropoietin: This is a hormone produced by the kidneys that stimulates the production of red blood cells.
C. Serum: Serum is the liquid portion of blood that remains after a clot has formed; it does not prevent clotting.
D. Heparin: Heparin is a natural anticoagulant produced by basophils and mast cells that inhibits the action of thrombin to prevent intravascular clotting.
Correct Answer is D
Explanation
A. Back of the hand: This area has "thin skin" with a relatively thin stratum corneum.
B. Thigh: This is also considered thin skin.
C. Abdomen: This is standard thin skin.
D. Sole of the foot: The soles of the feet and the palms of the hands consist of "thick skin," which has a significantly expanded stratum corneum to protect against high friction and pressure.
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