The physician has requested that the respiratory therapist determine a patient's rapid shallow breathing index (RSBI) before placing the patient on PSV. The patient has a respiratory rate of 32/min and VT of 300 ml. What is the patient's RSBI?

a. 107
b. 110
c. 112
d. 114


ANS: A
The formula for calculating RSBI is f/VT. The therapist would calculate 32/0.30 = 107.

Health Professions

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