Respiratory Flashcards
oral temperature in patient breathing fast
inaccurate
asthma epidemiology
INCREASING
- incidence
- prevalence
- hospital admissions
best initial test in acute asthma exacerbation
PEF and ABG’s
CXR in asthma
NORMAL
most accurate diagnosis of asthma
PFTs
when patient is asymptomatic and want to diagnose asthma
methacholine challenge test
CBC asthma
increase eosinophils
other random dx of asthma
skin testing and IgE levels
STEP 1 asthma tx
saba
STEP 2 asthma tx
+ low dose ICS or (cromolyn, theo, LTRA)
step 3 asthma tx
+ LABA
OR
INCREASE dose of ICS
step 4 asthma tx
saba + MAX dose ICS + LABA
step 5 asthma tx
+ omalizumab
step 6 asthma tx
ORAL steroids
adverse effects with zafirlukast
churg strauss
adverse effects with inhaled steroids
DYSPHONIA and oral candidiasis
anticholinergics in asthma
unknown use
best indication of asthma severity
RESPIRATORY RATE
PEF mainly based on….
HEIGHT, age
NOT weight
tx acute asthma exacerbation
- O2
- albuterol
- steroids
- epinephrine
- magnesium
- ICU–> resp acidosis– intubation
acute asthma best….
epinephrine> albuterol> magneseium
best initial tests for dx COPD
CHEST XR: increase AP diameter and flat diaphragm
DLCO in COPD
decrease in emphysema
NOT in chronic bronchitis
reversibility- complete
bronchodilator response greater than 12% increase and 200mL increase in FEV1
dx of COPD
ABG: increase CO2, decrease O2
CBC: increase Hct
EKG: RA/RV hypertrophy and a.fib or MAT
ECHO: RA/RV hypertrophy and pulmonary HTN
MAT in COPD
multifocal atrial tachycardia
improving mortality in COPD
smoking cessation
O2 tx
influenza and pneumococcal vaccine
O2 use in COPD
O2 less than 55/ sat less than 88%
with pulmonary HTN/ high Hct/ cardiomyopathy:
O2 less than 60/ sat less than 90%
anticholinergics in COPD
YESS ARE EFFECTIVE– no change in mortality
asthmatic not controlled with saba
ICS
COPD not controlled with saba
anticholinergic–> ICS
when medical tx fails in COPD
refer for transplantation
antibiotics for acute COPD exacerbation
macrolides: azithomycin, clarithromycin
cephalosporins: cefuroxime, cefixime, cefaclor, ceftibuten
co-amox
quinolones: levofloxacin, moxifloxacin, gemifloxacin
second line antibiotics in COPD
doxycycline
TMP/SMX
diagnosis of bronchiectasis
HRCT***** only way to diagnose
tx of bronchiectasis
physio
antibiotics– as infection comes: INHALED cold ones, rotate 1 weekly antibiotics
surgical resection if focal
steroids for ABPA
ORAL not inhaled (since inhaled cannot get a big enough dose to be effective)
COPD with pneumonia
haemophilus influ
diabetic or alcoholic with pneumonia
klebsiella
poor dentition or aspiration pneumonia
anaerobes
hoarseness pneumonia
chalmydophila pneumoniae
animals at the time of giving birth pneumonia
coxiella burnetti
rigors in pneumonia
sign of bacteremia
chest pain in pneumonia
pleuritic– PG’s
foul smelling sputum pneumonia
anaerobes
dry cough, not severe,
bullous myringitis
mycoplasma pneumonia
dry pneumonia/ non productive
mycoplasma viruses coxiella pneumocystis chalmydia
best diagnosis for pneumonia
CXR, sputum cultures= USELESS– since often cannot detect organism
first chest X ray for pneumonia
can be falsely negative in 10-20% of cases
sputum grain stain adequate if….
- more than 25 WBC’s
- fewer than 10 epithelial cells
blood cultures for pneumonia
positive in 5-15% cases of CAP– esp with s. pneumonia
dx of pneumonia from hx/exam alone?
NNNNOOOOOO
tests done in pneumonia with severe disease, and unknown aetiology, or not responding to tx
- thoracocentesis
- empyema
- bronchoscopy
thoracocentesis in pneumonia
- pleural effusion analysis
- or if empyema
empyema in pneumonia
LDH above 60%
protein above 50% of serum level
WCC above 1000
pH less than 7.2
bronchoscopy in CAP
RARE– in ICU
dx of mycoplasma pneumonia
- PCR
- cold agglutinins
- serology
- culture special media
dx chlamydophila pneumoniae
- rising serologic titers