Uncategorized

Quiz time – 9/8

Share

Which statement about ventilation and perfusion is correct?
a. When a lung region becomes hypoxic, small arteries constrict in response.
b. When a lung region becomes hypoxic, small arteries dilate in response.
c. A high ventilation/perfusion (V/Q) ratio occurs when pulmonary gas exchange is impaired.
d. A low V/Q ratio occurs when a well-ventilated lung area is poorly perfused.

Answer to Quiz Time: a. When a lung region becomes hypoxic, small arteries feeding that region sense hypoxia in alveolar gas and constrict in response. Constriction redirects blood away from the hypoxic region to better-oxygenated lung areas.

Learn more by reading the continuing nursing education article “Caring for patients in respiratory failure.”

Poll

What is your preferred way to consume healthcare content?

cheryl meeGet your free access to the exclusive newsletter of American Nurse Journal and gain insights for your nursing practice.

NurseLine Newsletter

  • This field is hidden when viewing the form

*By submitting your e-mail, you are opting in to receiving information from Healthcom Media and Affiliates. The details, including your email address/mobile number, may be used to keep you informed about future products and services.

Recent Posts