pulmonary Flashcards
pt with increased RR, hyperresounane upon assessment as well as pulses paradoxes , what do you suspect
asthma
pulsus paradoxus
seen in asthma
SBP decreases with inhalation
hyperresonance
air trapping
asthma / COPD
when is hospitalization recommended for asthma
FEV1 does not improve after bronchodilator
peak flow <60/liters/min or does not improve after treatment
expected finding of asthma in chest xray
hyperinflation
stepwise approach for managing asthma
step 1 - SABA (albuterol, levalbuterol)
Step 2 - ICS *budesonide, fluticasone, triamcinolone)
Step 3- ICS + LABA (salmeterol,)
step 4- medium ICS + LABA
step 5 - high dose ICS + LABA
how does levalbuterol work
by stimulating enzymes that convert adenosine triphosphate to cyclic-3, cAMP, which in turns relaxes bronchial smooth muscle
what is advair
fluticasone + salmeterol (LABA)
what is symbicort
formoterol + budesonide (LABA)
if a pt does not respond to SABA and ICS what other medication may you administer
magnesium sulfate
55 y/o female with progressive cough complains of clear sputum and has an increased chest A-P diameter , what do you suscpect
emphysema
40 y/o female presents with copious purulent sputum and mild dyspnea, xray reveals hyperinflation and normal AP diameter -what do you supect
chronic bronchitis
normal FEV1
70
typical FEV1 of COPD
low , below 70 due to reduced expiratory airflow
normal TLC
FRC
RV
TLC - 4000-11000
FRC - (functional residual capacity) -1.7-3.5L
RV (residual volume) -1-1.2L
what are the FRC and RV of a COPD
increased
what test is definitive diagnosis of TB
culture of M. tuberculosis x 3
small homogeneous infiltrate in upper lobe by XRAY
TB medication regimen
RIPE
r- rifampin
I- isoniazid
p - pyrazinamide
e - ethambutol
if isolate proves susceptible to INH and RIF then fourth drug may be dropped
tx time of TB in HIV
9 months