January 25, 2016 - SG7 - Dyspnea III Flashcards Preview

COURSE 3 > January 25, 2016 - SG7 - Dyspnea III > Flashcards

Flashcards in January 25, 2016 - SG7 - Dyspnea III Deck (12):
1

Atopy and Asthma

Often associated.

2

Common Side Effects of ACEi

Nocturnal cough.

 

If this happens, patients can be switched onto ARBs.

3

Vascular Redistribution

When the vessels stretch all the way to the edge of the lungs.

Can often be seen in heart failure.

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4

Methacholine Challenge

Observe what concentration of methylcholine is needed to cause a 20% drop in FEV1.

<4mg = asthma

4-16mg = indeterminate / mild asthma

>16mg = not asthma

5

Obstructive Airway Disorder

Less than 70% the expected value for FEV1/FVC

6

Asthma Diagnostics on Spirometry

Less than 70% FEV1/FVC

Increase of >12% in FEV1 with bronchodilator and >200mL

7

DLCO

Diffusing capacity.

Can help distinguish interstitial lung disease if it is low.

8

Pathologic Q-Waves

Evidence of a previous MI.

A pronounced Q-wave with a drop and width of >1 little square.

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9

SABA

"Reliever" medication.

10

LABA / ICS

"Controller" medication

11

Oxygen Saturation and Asthma

Should show normal oxygen saturation.

Asthma is an expiratory problem, not an inspiratory one. Can't blow off CO2 but O2 can still be dissolved.

12

Rising CO2 in Asthmatic Patients

This is BAD.

If carbon dioxide starts off low on the ABG and starts to rise without a marked improvement in symptoms, this indicates that the patient is failing therapy and may need to be intubated.

Even if the new CO2 is within the normal range.

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