Question

In: Anatomy and Physiology

How would your FEV1/FVC ratio be affected if your lips were not sealed on the mouthpiece...

How would your FEV1/FVC ratio be affected if your lips were not sealed on the mouthpiece during a test?

Solutions

Expert Solution

The spirometry test measures the ratio of forced expiratory volume in 1sec(FEV1) to forced vital capacity(FVC).
FEV1 is amount of air expired forcefully in 1 second.
FVC is the measure of amount of air exhaled forcefully after a maximum inspiration.
The FEV1/FVC ratio is decreased in obstructive lung diseases like COPD, emphysema, asthma.
The FEV1/FVC ratio is increased or normal with low FEV1 and FVC in restrictive lung diseases such as cyctic fibrosis, pneumonia or sarcoidosis.

In the spirimetry test a mouth piece is given which connects to the spirometer. The patient is asked to breath in breath out from mouth through spirometer.
Ensure that the patient lips are sealed around the mouthpiece throughout the process. If not it will cause leakage of exhaled air. This loss of air can result in error in measurement of forcefully exhaled air. This will result in increased or decreased fev1, fvc and fev1/fvc ratio leading to wrong interpretation of results.

Sydney Mullin answered 1 year ago
Next > < Previous

Related Solutions

A) How would your final result for the % KHP in the unknown be affected (if...
A) How would your final result for the % KHP in the unknown be affected (if at all) if the water used to prepare your unknown solution and your standard KHP solution was CO2-free, but the water used to prepare your NaOH solution was CO2-contaminated? Assume no other experimental error occurred. B) How would your final result for the % KHP in the unknown be affected (if at all) if the water used to prepare your NaOH solution and your...
How would an ecosystem be affected if a new tertiary consumer were brought into the ecosystem?...
How would an ecosystem be affected if a new tertiary consumer were brought into the ecosystem? Be specific and include details about how each trophic level would be impacted.  
1. How would the reaction be affected if bromoethane were used instead of iodoethane? 2. How...
1. How would the reaction be affected if bromoethane were used instead of iodoethane? 2. How would the reaction be affected if 2-iodopropane were used instead of iodoethane? experiment: http://legacy.earlham.edu/~seuka/Biochemistry/Ex.%2007%20Saccharin%20Alkylation.pdf
“How do you think the stock market would be affected if the laws were changed so...
“How do you think the stock market would be affected if the laws were changed so that trading on insider information was no longer illegal? What would be the impact on the goal of the financial manager if such a change were to occur?”
How would the yield of a PCR reaction be affected by the following mistakes? Explain your...
How would the yield of a PCR reaction be affected by the following mistakes? Explain your answer. 1. You forgot to add template DNA 2. you added TWICE as much template DNA as is called for by the intructions 3. You forgot to add Taq polymerase 4. You add HALF as much Taq polymerase as is called for the by instructions
How would the yield of a PCR reaction be affected by the following mistakes? Explain your...
How would the yield of a PCR reaction be affected by the following mistakes? Explain your answer. 1. You forgot to add template DNA 2. you added TWICE as much template DNA as is called for by the intructions 3. You forgot to add Taq polymerase 4. You add HALF as much Taq polymerase as is called for the by instructions
Explain how the below ratio could be affected if there was an increase in Publicly traded...
Explain how the below ratio could be affected if there was an increase in Publicly traded hospital costs or supply chain disruptions occurred for materials including equipment, medications and other supplies? And explain how these ratio can affect the Publicly traded hospital financial statement Increase in costs a. Debt service coverage ratio (Net Income/Debt Service) b. Profit Margin Ratio (Net Income/Net Sales) c. Return on Assets (Net Income/ total assets) Supply chain disruptions a. Current Ratio (Current Assets/Current Liabilities) b....
Explain how the below ratio could be affected if there was an increase in Publicly traded...
Explain how the below ratio could be affected if there was an increase in Publicly traded hospital costs or supply chain disruptions occurred for materials including equipment, medications and other supplies? And explain how these ratio can affect the Publicly traded hospital financial statement Increase in costs a. Debt service coverage ratio (Net Income/Debt Service) b. Profit Margin Ratio (Net Income/Net Sales) c. Return on Assets (Net Income/ total assets) Supply chain disruptions a. Current Ratio (Current Assets/Current Liabilities) b....
Talk about 3 retailers around your place that were affected and how did they react to this pandemic?
  Debenhams prepares to file for bankruptcy Debenhams is preparing to call in administrators after the struggling department store was forced to close all its outlets under the coronavirus lockdown. The company, which has 22,000 staff and was rescued by its lenders after collapsing into administration only a year ago, is understood to be considering filing a formal notice of intention to appoint administrators next week. The legal process provides protection from creditors for 10 working days while a company...
Explain Dumping and how would an economy can be affected by dumping? Give your answer via...
Explain Dumping and how would an economy can be affected by dumping? Give your answer via graph by using change in § Consumer surplus § Producer surplus § Net welfare effect judgments 2. Explain the policies a country should implement in order to protect its industry from dumping.
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT