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Hyperventilation refers to Select one: a. Ventilation that elevates PO2 in the pulmonary veins b. Any...

Hyperventilation refers to Select one: a. Ventilation that elevates PO2 in the pulmonary veins b. Any time our respiratory rate exceeds 25 breaths per minute c. Any time our respiratory rate exceeds 20 breaths per minute d. Any time our respiratory rate exceeds 35 breaths per minute e. Ventilation that lowers PCO2 in systemic arteries

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Ventilation that lowers PCO2 in systemic arteries.

A normal breathing rate for an adult at rest is 12 to 20 breaths per minute. For an infant, a normal rate is up to 44 breaths per minute. A respiration rate under 12 or over 25 breaths per minute for an adult while resting is considered abnormal. The condition like breathing too fast (above 20-25 breaths per minute) is referred as Tachypnea. The term hyperventilation is usually used to describe taking rapid, deep breaths.

Hyperventilation causes from anxiety, panic, nervousness, stress, drug overdose, head injuries etc. Hyper ventilation causes a decrease in PO2 in the blood of capillaries and veins. During hyperventilation, the arterial PCO2 lowers and blood pH increases, the average PO2 decreased in proportion to the decrease in arterial PCO2.

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