What shape of the flow-volume loop is typical for the patient with a fixed upper airway obstruc-tion?

a. Circular
b. Box
c. Elliptical
d. Ramp


ANS: B
Compared with the normal flow-volume loop, a fixed upper airway obstruction produces a curve that appears box-shaped.

Health Professions

You might also like to view...

Which of the following abbreviations is on the Joint Commission's Do Not Use list?

A) BMR B) ANS C) DNR D) IU

Health Professions

Interpersonal skills include positive characteristics such as sincerity, honesty, enthusiasm, and respect for others; these skills are also known as "soft skills."

Indicate whether the statement is true or false

Health Professions

In an allowed charges payment method, if the provider's charge is lower than the allowed amount, the reimbursement is based on

A. the co-insurance. B. the amount billed. C. the amount allowed. D. the deductible.

Health Professions

The localized destruction of tissue and accumulation of exudate around the apical area is ____________

a. a fistula b. osteomyelitis c. cellulitis d. a periapical abscess

Health Professions