Pulmonology Flashcards
definition of acute bronchitis
cough > 5 days w or w.o sputum x 2-3 weeks
when would you suspect pna w. bronchitis sx
HR > 100
RR > 24
T > 38
tx for acute bronchitis
symptomatic
abx not recommended
pathophys of asthma
airway inflammation -> hyperresponsiveness -> reversible airflow obstruction
dx for asthma
-FEV1:FVC ratio < 80%
-greater than 12% increase in FEV1 after bronchodilator therapy
asthma classificaitons
-intermittent: daytime sx </= 2 days/week
-mild persistent: daytime sx > 2 days/week, nocturnal sx 3-4/month
-moderate persistent: daily sx, nighttime sx >1/week
-severe persistent: sx all day, nightly sx
asthma step up therapy
step 1: SABA PRN
step 2: daily low dose ICS, SABA PRN
step 3: low dose ICS/LABA daily, SABA PRN
step 4: med dose ICS/LABA daily, SABA PRN
step 5: med dose ICS/LABA, SABA PRN, +/- biologics
step 6: high dose ICS/LABA, +/- LAMA, SABA PRN, oral steroids
what are FEV and FVC
FEV: how much air a person can exhale during a forced breath
FVC: total amt of air exhaled during FEV test
during PFT testing, you would expect _ to be the greatest amt of air, but this value is decreased in asthma
FEV 1
25 yo CF pt w, chronic frequent coughing of yellow/green sputum and hemoptysis - HPI includes recent pseudomonas pna - she has foul breath - CXR shows “plate-like” atelectasis
bronchiectasis
pathophys of bronchiectasis
lungs airways become dilated/damaged -> inadequate mucus clearance -> mucus builds up -> frequent infxns
what conditions are associated w. bronchiectasis (5)
CF - 1/2 of cases
immune compromised
recurrent pna
aspiration
tumor
what is this showing
plate like atelectasis -> bronchiectasis
3 hallmark sx of bronchiectasis
daily cough
copious foul smelling sputum
frequent respiratory infxns
2 CXR findings of bronchiectsis
tram track lung markings
plate-like atelectasis
gs for bronchiectasis dx
CT
lung sounds associated w. bronchiectasis
crackles
wheezes
tx for bronchiectasis
ambulatory O2
abx for acute
CPT
lung transplant
43 yo w. cutaneous flushing, diarrhea, wheezing - PMH HTN and T2DM - P 125, RR 30, BP 90/60 - diffuse wheezes in both lungs, diffuse “v” wave of jugular vein, 1/6 holosystolic murmur over LLSB, hyperactive bowel sounds
carcinoid tumor
carcinoids tumors arise from _ cells leading to excessive secretion of _ (3)
neuroendocrine
serotonin, histamine, bradykinin
common primary sites of carcinoid tumor (7)
GI (SI/LI)
stomach
pancreas
liver
lungs
ovaries
thymus
mc site of neuroendocrine/carcinoid tumor metastasis
liver
mcc of neuroendocrine tumor metastasis
carcinoid tumor of the appendix -> metastasizes to the liver
hallmark sx of carcinoid syndrome
cutaneous flushing
diarrhea
wheezing
increased serotonin secretion w. carcinoid tumors leads to
collagen fiber thickening, fibrosis ->
-tricuspid regurgitation
-pulmonary stenosis
-bronchoconstriction
-wheezing
-pellagra
histamine release with carcinoid tumors leads to
vasodilation -> flushing
dx for carcinoid tumor
CT
octreoscan
UA
CXR
bronchoscopy
UA findings of carcinoid tumor
elevated f-HIAA (metabolite of serotonin)
CXR findings of carcinoid tumor
pedunculated sessile growth on the central bronchi
bronchoscopy findings of carcinoid tumor
well vascularized pink/purple cental lesion
tx for carcinoid tumor
surgical excision
octreotide (decreases serotonin)
niacin supplement
pathophys of COPD
chronic lung inflammation -> loss of elastic recoil and increasing airway resistance -> obstructed airflow
COPD includes
emphysema
chronic bronchitis
2 rf for COPD
smoking
alpha 1 antitrypsin deficiency
COPD in pt < 40 yo makes you think
alpha 1 antitrypsin deficiency
emphysema causes loss of _, permanently enlarged _, and difficulty _
loss of elastin
enlarged alveolar sacs
difficulty exhaling
hallmark sx of emphysema
DOE
6 PE findings of emphysema
hyperresonance to percussion
decreased/absent breath sounds
decreased tactile fremitus
barrell chest
pursed lip breathing
cachexia
what is this showing
loss of lung markings
hyperinflation
increased A/P diameter
emphysema
PFT findings of COPD
FEV1/FVC ratio < 0.7
increased TLC
ABG findings of COPD
respiratory acidosis
definition of chronic bronchitis
chronic productive cough on most days x 3 months of the year x 2 or more consecutive years
pathophys of chronic bronchitis
hypertrophy/hyperplasia of bronchial mucous glands/goblet cells in bronchioles -> cilia less mobile -> increased mucus production -> mucus plugs -> obstruction -> air trapping
5 PE findings associated w. chronic bronchitis
rales
ronchi
wheezing
cor pumonale (peripheral edema, cyanosis, JVD)
hepatomegaly
CXR findings of chronic bonchitis
perivascular markings
CBC findings of COPD
chronic hypoxic state leads to increased Hgb/Hct
gs dx for COPD
PFTs/spirometry
_ < 1L = increased mortality w. COPD
FEV1
CXR findings associated w. chronic bronchitis
increased AP diameter
increased vascular markings
enlarged right heart border
tx for COPD
LABA/LAMA combo
SAMA preferred over SABA
name a LAMA
tiotropium (spiriva)
name a SAMA
ipratropium (atrovent)
2 contraindications for SAMA/LAMA
glaucoma
bph
name a LABA
salmeterol (serevent)
s.e of SABA/LABA
tachycardia/arrhythmias
muscle tremor
CNS stimulation
hyperglycemia
contraindications for SABA/LABA
severe CAD
hyperthyroid
caution w. DM
adenosine antagonist that acts as a bronchodilator but is only used for refractory COPD/asthma due to narrow therapeutic index
theophylline
higher doses of theophylline are needed for what 2 pt pops
smokers
coffee drinkers
are ICS considered first line for COPD
no ma’am
indications for O2 therapy w. COPD
resting PaO2 < 55
OR
SpO2 < 89%
stages of COPD
I/mild: FEV1>80%
II/mod: FEV1 50-80%
III/severe: FEV1 30-50%
IV/very severe: FEV1 < 30%, e/o cor pulmonale
tx for COPD
I: SAMA
II: SAMA/LAMA
III: SAMA/LAMA, ICS, pulm rehab
IV: SAMA/LAMA, ICS, pulm rehab, O2
2 vaccines super important for COPD
influenza
pneumococcal