Which of these are tiny air sacs surrounded by capillaries where gas exchange occurs? 

Which of the following BEST defines the "physical examination"?

a. The physical structure of the human body b. The physician's clinical identification of the severity of and risk posed by the condition, disease, illness, injury, complaint, or other medical reason for which the patient has presented to the healthcare facility for the E/M service c. The objective clinical assessment of a patient's current health status, performed by a physician during an E/M service visit; identifies the functions, performance, and structure of the patient's physiology and health d. Determining the status of an organ by pressing, gently pushing, or touching with fingertips, fingers, or palm of hand

While performing cardiopulmonary resuscitation, the therapist is attempting to orally intubate the patient. The therapist observes the distal tip of the ET tube pass through the glottis. After attaching a colorimetric CO2 detector to the ET tube, the therapist notices that the face of the CO2 detector appears yellow. What should the therapist do at this time?

A. Obtain a different colorimetric CO2 detector. B. Remove the ET tube, and reintubate the patient. C. Secure the ET tube in place with adhesive tape. D. Wait until the paper on the colorimetric CO2 detector turns purple.