« previous next »

Author Question: If a patient has a VT of 370 ml and a respiratory rate of 20 breaths/min, what is the minute ... (Read 61 times)

Charlie

  • Hero Member
  • *****
  • Posts: 640
on: Jul 16, 2018
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
Reply #1 on: Jul 16, 2018
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
« previous next »
 

Did you know?

Amphetamine poisoning can cause intravascular coagulation, circulatory collapse, rhabdomyolysis, ischemic colitis, acute psychosis, hyperthermia, respiratory distress syndrome, and pericarditis.

Did you know?

The term pharmacology is derived from the Greek words pharmakon("claim, medicine, poison, or remedy") and logos ("study").

Did you know?

Drug abusers experience the following scenario: The pleasure given by their drug (or drugs) of choice is so strong that it is difficult to eradicate even after years of staying away from the substances involved. Certain triggers may cause a drug abuser to relapse. Research shows that long-term drug abuse results in significant changes in brain function that persist long after an individual stops using drugs. It is most important to realize that the same is true of not just illegal substances but alcohol and tobacco as well.

Did you know?

Signs and symptoms that may signify an eye tumor include general blurred vision, bulging eye(s), double vision, a sensation of a foreign body in the eye(s), iris defects, limited ability to move the eyelid(s), limited ability to move the eye(s), pain or discomfort in or around the eyes or eyelids, red or pink eyes, white or cloud spots on the eye(s), colored spots on the eyelid(s), swelling around the eyes, swollen eyelid(s), and general vision loss.

Did you know?

The types of cancer that alpha interferons are used to treat include hairy cell leukemia, melanoma, follicular non-Hodgkin's lymphoma, and AIDS-related Kaposi's sarcoma.

Measuring Patient Height Measuring Patient Height
Pulmonary function test: spirometry. (a) Normal respiratory volumes, as measured during spirometry. Pulmonary function test: spirometry. (a) Normal respiratory volumes, as measured during spirometry.
Adult Respiratory Distress Syndrome Adult Respiratory Distress Syndrome
Positioning the Patient in the Fowler’s Position Positioning the Patient in the Fowler’s Position
Preoperative and Postoperative Patient Instructions Preoperative and Postoperative Patient Instructions
Major inner membrane transport systems for respiratory substrates and products Major inner membrane transport systems for respiratory substrates and products
Video: PET Scan Animation

For a complete list of videos, visit our video library