Capnography is a reliable method for confirming proper ET tube placement because:
A) carbon dioxide is not present in the esophagus.
B) it is a reliable indicator of the patient's PaO2 level.
C) capnographers measure the amount of exhaled oxygen.
D) capnographers measure the amount of carbon dioxide in inhaled air.
Answer: A) carbon dioxide is not present in the esophagus.
You might also like to view...
Before draining into the dural sinuses, the blood from the head passes into the external (superficial) and internal (deep) veins.
Answer the following statement true (T) or false (F)
Physical damage to the lamina propria of the nasal mucosa is likely to result in
A) epistaxis. B) nasal congestion. C) nosebleeds. D) a deviated septum. E) epistaxis or nosebleeds.
Amy is a premed student with a summer job as an animal research technician. One of her duties is to withdraw blood by syringe from the anterior vena cava of pigs, to be analyzed for various hormones. During her training she noticed that most blood samples were very dark in color, but occasionally a sample was bright red. Propose an explanation.
What will be an ideal response?
Sperm:
A. are stored in the vas deferens and the last part of the epididymis. B. travel from the seminiferous tubules to the epididymis by the beating action of their flagellae. C. travel through the vas deferens, then the ejaculatory duct, then the ureter during ejaculation. D. are expelled from the penis through the ureter. E. are no longer produced in individuals who have undergone a vasectomy.