Author Question: How reliable is the tidal volume measurement in predicting the type of lung disease present? a. ... (Read 106 times)

Coya19@aol.com

  • Hero Member
  • *****
  • Posts: 601
How reliable is the tidal volume measurement in predicting the type of lung disease present?
 
  a. Very reliable
  b. Somewhat reliable
  c. Not reliable
  d. Reliable but only in certain age groups

Question 2

During a helium (He) dilution functional residual capacity (FRC) measurement, the technologist first bleeds in 500 ml of He (He Vol) and obtains an initial reading of 4.0 (FiHe). After equili-bration, the second He reading is 3.2 (FfHe).
 
  What is the patient's FRC?
  a. 4450 ml
  b. 3125 ml
  c. 2680 ml
  d. 3670 ml



Jevvish

  • Sr. Member
  • ****
  • Posts: 326
Answer to Question 1

ANS: C
Normal tidal volumes are often observed in both restrictive and obstructive lung diseases. There-fore, the VT alone is not a valid indicator of the type of lung disease.

Answer to Question 2

ANS: B
If the patient is connected to the circuit at the resting level, the FRC can be calculated with the following equation: FRC = (vol He  FiHe)  (FiHe  FfHe)  FfHe.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Allergies play a major part in the health of children. The most prevalent childhood allergies are milk, egg, soy, wheat, peanuts, tree nuts, and seafood.

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?

Over time, chronic hepatitis B virus and hepatitis C virus infections can progress to advanced liver disease, liver failure, and hepatocellular carcinoma. Unlike other forms, more than 80% of hepatitis C infections become chronic and lead to liver disease. When combined with hepatitis B, hepatitis C now accounts for 75% percent of all cases of liver disease around the world. Liver failure caused by hepatitis C is now leading cause of liver transplants in the United States.

Did you know?

To combat osteoporosis, changes in lifestyle and diet are recommended. At-risk patients should include 1,200 to 1,500 mg of calcium daily either via dietary means or with supplements.

Did you know?

Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.

For a complete list of videos, visit our video library