Author Question: If a patient has a VT of 370 ml and a respiratory rate of 20 breaths/min, what is the minute ... (Read 107 times)

Charlie

  • Hero Member
  • *****
  • Posts: 640
If a patient has a VT of 370 ml and a respiratory rate of 20 breaths/min, what is the minute venti-lation?
 
  a. 2.40 L/min
  b. 3.70 L/min
  c. 6.45 L/min
  d. 7.40 L/min

Question 2

What is the gas that is wasted during normal ventilation called?
 
  a. Alveolar ventilation
  b. Bronchial ventilation
  c. Conducting ventilation
  d. Dead space ventilation



ryrychapman11

  • Sr. Member
  • ****
  • Posts: 334
Answer to Question 1

ANS: D
Minute ventilation (exhaled) is denoted by E, which is calculated as the product of frequency of breathing (fB) times the expired tidal volume:

Answer to Question 2

ANS: D
For each breath, the gas left in the conducting tubes does not participate in gas exchange and is, in effect, wasted. Similarly, regional differences in ventilation cause some gas that does reach the alveoli to be wasted. This occurs in alveoli that have little or no perfusion. Ventilation occurring without perfusion defines dead space.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

The most destructive flu epidemic of all times in recorded history occurred in 1918, with approximately 20 million deaths worldwide.

Did you know?

The use of salicylates dates back 2,500 years to Hippocrates’s recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.

Did you know?

Symptoms of kidney problems include a loss of appetite, back pain (which may be sudden and intense), chills, abdominal pain, fluid retention, nausea, the urge to urinate, vomiting, and fever.

Did you know?

Prostaglandins were first isolated from human semen in Sweden in the 1930s. They were so named because the researcher thought that they came from the prostate gland. In fact, prostaglandins exist and are synthesized in almost every cell of the body.

Did you know?

According to research, pregnant women tend to eat more if carrying a baby boy. Male fetuses may secrete a chemical that stimulates their mothers to step up her energy intake.

For a complete list of videos, visit our video library