RCP 450 - Week 9 | Chapter 20

No more than _________ maneuvers should be performed in one testing session to avoid back-pressure from increased COHgb.

Healthy patients and those with airway obstruction should be able to inspire at 90% of their VC within ____ seconds.

During helium dilution and nitrogen washout, when do you connect the patient to the system to begin the test?

There are several techniques to measure the diffusing capacity of the lung for CO:

Factors known to affect test should be controlled or standardized:

An interval of at least _____ minutes should elapse between repeated tests to allow clearance of the CO gas from lungs.

Measuring LUNG VOLUMES uses a closed, rebreathing circuit

What Law does the body box use?

What is Nitrogen Washout used for? 🔝

Is the amount of AIR in the lungs after normal expiration

Tests how much inflammation a patient has in their lungs.

What are DLco indications? 🔝

DLco maneuvers should be performed after the patient has been seated for at least 5 minutes.

What are DLco contraindications?

Decreased DLco (decreased diffusion) occurs in patients with:

Is measuring the ability of the lungs to transfer gases across the alveolar-capillary membrane.

______ is used as the transfer gas because is similar to O2 in many ways.

What is an average DLco range from?

What techniques are used to measure residual volume?

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DLco is often _______ in RESTRICTIVE lung diseases – Especially those with pulmonary fibrosis

Is an AIRTIGHT chamber in which the patient sits during the procedure.

This takes about _______ minutes, but patients with severe pulmonary disease take longer (up to 20 minutes).

A helium analyzer reads ____ when calibrated on room air.

Complete Nitrogen washout occurs in about ____ minutes (maybe 2-5 minutes).

• DLCO tests are done with computerized DLCO equipment, this allows for test results that are:

A novel medical technology used to aid in the diagnosis of asthma.

How is a Helium Dilution test done? 🔝

Factors that increase DLco:

Carbon monoxide (CO) is the gas normally used to measure the ______.

Spirometer is normally filled w/ about (1)_______ mL of gas with about (2)______ Helium added to volume.