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Pulmonary Q main points
Educational Objectives
86
Medical
Professional
01/01/2012

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Term
Prolonged substernal pain and ST segment elevation in leads I and V3-6
Definition
anterolaterial MI
Term
What are some common consequences of an MI?
Definition
LV Failure
Cardiogenic Acute Pulmonary Edema
Pulmonary Venous Hypertension
Transudate of Plasma into interstitium and alveoli
Term
In the lungs, what cell types causes tissue damage and leads to abscess formation?
Definition
Neutrophils and Macrophages secrete lysosomal enzymes
Term
Why is the pO2 in the Left Atrium lower than in the pulmonary veins?
Definition
Deoxygenated blood from the bronchiole arteries are added
Term
What does the V/Q ratio do when you move from the apex to the base of the lung?
Definition
decreases
Term
Is an HIV patient with a CD4+ count of >200 immunocompetant?
Definition
yes
Term
What is the most common bug for immuno-competant patients?
Definition
Streptococcus Pneumoniae
Term
What are Superior Vena Cava Syndrome symptoms and causes?
Definition
Symptoms: facial swelling, headaches
Cause: mediastinal mass that is pressing on the SVC
Term
Percardial effusion signs and symptoms
Definition
Dyspnea, distended neck veins, distant heart sounds, pulsus paradoxus
Term
Pancoast tumor
Definition
superior sulcus lung tumor
1. Severe shoulder area pain that radiates towards axilla or scapula (lower brachial plexus)
2. Horner's Syndrome : ipsilateral ptosis, anhydrosis, myosis (cervical sympathetic ganglia)
3. Upper Extremity Swelling compression of subclavian
4. spinal cord compression/paraplegia (extension into cervical foramina)
Term
Small Cell lung tumors often secrete what hormones?
Definition
ACTH which leads to Cushings
ADH which leads to SIADH

"ants are small"
Term
Squamous cell lung tumors often secrete what hormones?
Definition
Parathyroid and calcitonin

"PC's are square"
Term
Classic presentation of Legionella infection
Definition
very high fever in a smoker
diarrhea, confusion, cough causing chest pain
Term
What kind of lung issues arise in Rheumatoid Arthritis patients?
Definition
Pulmonary fibrosis
Term
How does a Mycoplasma Pneumoniae infection cause anemia?
Definition
It shares antigens with human erythrocytes, thus causing antibodies (cold agglutinins) to attack those as well as the mycoplasma)
Term
What does ether or organic solvents do to viruses?
Definition
Disrupts the envelope on enveloped viruses
Term
Why do lung abscesses form? What bugs are involved?
Definition
1. Aspiration of oropharyngeal contents: Fusobacterium, Peptostreptococcus, Bacteroids
2. Necrotizing pneumonia: Staph Aureus, E. coli, Klebsiella, Strep Pneumonia
3. septicemia or infectious endocarditis: Staph, Strep
Term
What conditions predispose you to aspiration lung abscesses?
Definition
loss of consciouness
ex) alcoholism, seizure disorders, prolonged anesthesia, severe neurologic diseases
Term
What is the Reid index?
Definition
-measures severity of chronic bronchitis (mucus gland enlargement)
- ratio: thickness of mucus gland layer in the bronchial wall submucosa/thickness of bronchial wall between respiratory epithelium and bronchial wall
- normal 0.4
Term
What are the two variants of scleroderma?
Definition
CREST
systemic sclerosis
Term
What is the patho/phys of scleroderma?
Definition
increased collagen deposition in tissues
Term
What physical signs would you see in someone with lung problems due to scleroderma?
Definition
Pulmonary hypertension leads to....
- accentuated pulmonary component of heart sounds
- signs of right sided heart failure
Term
Why is pus sometimes green?
Definition
Release of myelopyroxidase from neutrophil azurophilic granules
Term
Where does TB proliferate?
Definition
in alveolar macrophages
Term
Idiopathic Pulmonary Fibrosis presentation
Definition
- insiduous onset progressive dyspnea
- restrictive PFT's
- honeycomb lung
Term
Churg Straus pulmonary symptoms and histology
Definition
- severe asthma
- obstructive PFT
- bronchial wall thickening
- necrotizing vasculitis with granulomas
- eosinophil infiltration
Term
Spontaneous Pneumothorax presentation
Definition
- sudden onset unilateral chest pain
- absent breath sounds
- hyper resonance
Term
What is the most common cause of Spontaneous pneumothorax?
Definition
rupture of apical subpleural blebs
-primary is usually in tall thin males
- secondary can be due to emphysema
Term
How do Echinocandins work?
Definition
inhibit polysaccharid glucan in fungus walls
Term
How do you treat Small Cell Carcinoma?
Definition
chemotherapy or radiation... not surgery

*most aggressive
Term
What is non-typable Haemophilus Influenza? Is it virulent?
Definition
H Flu without a capsule. It is still virulent.
Term
What does H Flu cause?
Definition
E
Meningitis
Otitis Media
Pneumonia
Term
What is one of the side effects of Ethambutol?
Definition
visual acuity issues
Term
What vitamin deficiency is often linked to isoniazad use?
What symptoms does it cause?
Definition
B6
peripheral neuropathy
Term
What do you give pregnant moms going into premature labor to stimulate surfactant production in the fetal lungs?
Definition
corticosteroids
Term
What is a common cause of retinal neovascularization in premature babies? Especially in developing counties.
Definition
supplemental oxygen
Term
pleural plaques are indicative of...
Definition
asbestos exposure
Term
If fecal cultures of a pregnant woman in her 35-37 wks gestation is positive for b-hemolytic gram positive cocci that's bacitran resistant in chains, what do you give her and why? What bug is it?
Definition
ampicillin
To prevent GBS sepsis, meningitis, pneumonia in the baby
Group B Strep (S. Agalactiae)
Term
What carcinoma looks like "tall columnar cells that line the alveolar septa without evidence of vascular or stromal invasion" under a microscope?

It is rare and peripheral in non-smokers
Definition
bronchoalveolar carcinoma
Term
What does Legionella require to grow?
Definition
charcoal-yeast extract medium
cysteine
Term
What happens in chronic rejection of a lung transplant?
Definition
small airways are effected
bronchilitis obliterans syndrome

Sx: dyspnea and wheezing
Term
What gene predisposes a patient to pulmonary hypertension?
Definition
BMPR2
Then a secondary insult starts the disease process which leads to vascular smooth muscle proliferation in pulmonary vasculature and elevated pulmonary pressures.
Term
What bug causes acute upper airway obstruction?
What do you treat it with?
Definition
Respiratory Syncitial Virus
Ribavirin
Term
What part of the respiratory cycle is pulmonary vascular resistance the lowest?
Definition
functional residual capacity
-inhalation increases resistance because the expanding alveoli press on the vasculature
-forced expiration increases resistance because of the positive pressure placed on the lungs from the pleura
Term
What bugs are "acid-fast"?
Definition
ones with mycolic acid in their cell walls
- Mycobacterium and some Nocardia species
Term
What vaccine is conjugated with Diptheria toxin?
Definition
HIB
Term
What substance leads to granuloma formation? What cell type is it from?
Definition
T lymphocytes secrete IFN-gamma
Term
What is the PP of Chronic Granulomatous Disease?
Definition
Lack of NADPH oxidase
nuetrophils don't turn blue
Term
Which hyperimmunoglobulin syndrom is associated with lymphoid hyperplasia and recurrent sino-pulmonary infections?
Definition
IgM...
faulty switching
Term
Why are patients with silicosis more likely to get TB?
Definition
impaired macrophage killing
Term
What are some B cell surface markers?
Definition
CD19, 20, 21
Term
What is X-linked agammaglobulinemia?
Definition
Low levels of B cells and all immunoglobulins
Term
Does Sarcoidosis have high or low CD4+?
Definition
high
... in contrast to AIDS pt with lymphocytic interstitial pneumonia and hypersensitivity pneumonitis
Term
kid with:
frequent fungal/viral/bacterial infections, thymic hypoplasia, constant diarrhea, failure to thrive, hypoglobinemia
Definition
SIDS
... both B cell and T cell issues
Term
Langhans giant cells in TB are caused by what cells?
Definition
CD4+ TH1
Term
Do killed/viral component vaccines stimulate a stronger humoral or a stronger cell mediated immune response?
Definition
humoral!
Term
How does Omalizumab work? What is it used for?
Definition
anti-IgE used in treating severe asthma
Term
How does Cromolyn work?
Definition
Mast cell stabilizer
prevents mast cell degranulation
Term
How does Omalizumab work?
Definition
It prevents IgE from binding to mast cells.
Used in treating asthma
Term
Heavy smoker with increase AP diameter and decrease diaphragm excursion
Definition
COPD
Term
What is the FEV1/FVC ratio expected with COPD
Definition
FEV1/FVC <80%
Term
COPD PFT's
Definition
increased TLC
decreased FEV1/FVC
decrease FVC
increased RV
Term
Which direction would the trachea go if there was pleural effusion?
Definition
away
Term
Which direction would the trachea go if there was volume loss?
Definition
towards
Term
What would you see on Xray of a main stem obstructive lesion that leads to lung collapse?
Definition
opacified lung with trachea deviating towards the opacity
Term
Meconium ileus
Definition
distal small bowel obstruction due to dehydrated meconium
associated with CF
Term
Meconium ileus signs/symptoms
Definition
bilious vomiting, abdominal distension, air fluid levels, small bowel dilation
Term
What do CF patients usually die from?
Definition
Pneumonia
(bronchiectasis, cor pulmonale, bronchitis obstructive pulmonary disease)
Term
What yeast is associated with gardening (thorn pricks)
Definition
Sporothrix Schenckii
Term
What yeast is associated with southwestern states (dessert areas)?
Definition
Coccoidioides Immitis
Term
What yeast is associated with Ohio, Mississippi River, bird/bat droppings?
Definition
Histoplasma Capsulatum
Term
What yeast is associated with soil near Ohio/Mississippi River, Great lakes?
Definition
Blastomyces dermatitidis
Term
What yeast is associated with Central/South America?
Definition
Paracoccidioides brasiliensis
Term
Shipyard worker with bloody pleural effusion and pleural thickening
Definition
Mesothelioma
Term
When would you want to use Rifampin monotherapy?
Definition
prophylactically to treat pt's exposed to N. Meningitidis and H. Flu
- resistance usually occurs quickly when used by itself in other cases
Term
What does Rifampin do to CYP450?
Definition
Amplifies it
Term
What is hematin?
Definition
X factor
Term
What bug requires hematin to grow?
Definition
H. Flu
-Also needs V factor (NAD+) and chocolate agar
Term
Does H Flu need a capsule to be systemic?
Definition
Yes
Term
What is H Flu's virulence factor?
Definition
PRP (Polyribosyl Ribotol Phosphate)
derived from the capsule
Term
Nontypable/capsulated H Flu causes....
Definition
local infections
-sinusits
-otitis media
-bronchitis
Term
Does blood flow per minute stay the same in the pulmonary and systemic blood flow?
Definition
yes
Term
WHich system has a higher pressure? Pulmonary or systemic
Definition
systemic
Term
Does increased pCO2 cause cerebral dilation or constriction?
Definition
dilation
Term
How will pH change in a pt with COPD?
Definition
increased CO2 -> respiratory acidosis
Term
Does chronic hypoxia cause pulmonary vasoconstriction/dilation?
Definition
constriction
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