Emergency Medicine Flashcards
Shockable cardiac arrest rhythms
Ventricular fibrillation and pulseless ventricular tachycardia
How to treat unstable tachycardia
Synchronized cardioversion cardioversion
How to treat stable tachycardia
If wide QRS(>.12) maybe adenosine and consult cardiology
If narrow QRS vagaries maneuvers, are Dione, BB, CBB, then consult
What indicates that a patient is unstable?
SBP <90
Chest pain
CHF
AMS
How to treat unstable bradycardia?
Atropine, then transcutaneous pacing if needed
Dopamine and epi are back up treatments in
Lateral leads
I aVL V5 V6
Septal leads
V1 V2
Anterior leads
V3 V4
Inferior leads
II III aVF
Samter’s triad
Asthma, nasal polyps, ASA/NSAID allergy
Pulmonary exam on asthma
Prolonged expiration with wheezing hyperesonance
Side effects of beta agonist
Tachycardia/arrhythmia, muscle tremor, CNS stimulation, hypokalemia
Lab abnormalities with chronic bronchitis
Respiratory acidosis and increased hct/RBC
Most common cause of transudative pulmonary effusion
CHF
Pulmonary exam with pleural effusion
Decreased tactile Fremont is, decreased breath sounds, dullness to percussion, pleural friction rub
How do you know if a effusion is exudative?
Pleural protein:serum protein >0.5
Pleural LDH:serum LDH >0.6
Pleural LDH>2/3 UNL
Physical exam with tension pneumothorax
Elevated JVP, pulsus paradoxus, hypotension
Pulmonary exam with pneumothorax
Hyperresonance, decreased fremitus, decreased breath sounds
Tx for pneumothorax
Observation if <20% with fu cxr in 24-48 hr
Chest tube/thoracotomy if large or severe sx
Needle aspiration if tension
Characteristics of benign pulmonary nodules
Round, smooth, slow growing, calcified, cavitary
Characteristics of malignant pulmonary nodules
Irregular speculated, rapid growth
Where does lung cancer usually metastasize to? (5)
Brain, bone, liver, lymph nodes, adrenals
MC lung cancer arises peripherally and metastasizes to distant areas
Non small cell adenocarcinoma
Centrally located lung cancer that may cause hemoptysis. Associated with cavitary lesions, hyper lace is, and pa cost syndrome.
Non small cell squamous cell carcinoma
Pancoast syndrome
Shoulder pain
Hornets syndrome(miosis , ptosis, anhydrosis)
Atrophy or arm/hand muscles
Very aggressive pulmonary non small cell carcinoma
Large cell (anaplastic) carcinoma
Lung cancer that metatasizes early. Associated with SVC syndrome, SIADH/hyponatremia, Cushings syndrome, and lambert-Eaton.
Small cell (oat cell) carcinoma
- surgery usually not tx of choice
Antidote for heparin
Protamine sulfate
MOA heparin
Potentiates antithrombin III
Morphology of strep pneumo
Gram positive cocci in pairs
Morphology of staph aureus
Gram positive cocci in clusters
Pneumonia caused by gram negative rod should make you think of these organisms
H flu, klebsiella, pseudomonas
MC cause of CAP
Strep pneumo
Followed by H flu
Pneumonia associated with GI symptoms, elevated LFTs and hyponatremia
Legionella
History suspicious for histoplasmosis
Exposure to bat droppings in Mississippi & Ohio River valley
Rusty blood tinged sputum
Strep pneumo
Green sputum
H flu and pseudomonas
Currant jelly sputum
Klebsiella
Foul smelling sputum
Anaerobes
First line therapy for CAP
Doxycycline or macrolides/mycin
Inpatient pneumonia tx
Beta lactam with macrolide or FQ
Tx for legionella
Levo or azithromycin
Tx for pseudomonas
Pipracillin/taxobactam, cefepime, amikacin, gentamicin, tobramycin, FQ
Caseating granumonas in apecies of lung
Tb
What is a positive PPD?
> 5mm if immunocompromised, known contact, or suggestive CXR
> 10mm if high risk population
> 15mm if no risk factors
Tb treatment
RIPE or RIPS
Rifampin, isoniazid, pyrazinamide, ethambutol or streptomycin
Adverse effects of rifampin
Thrombocytopenia, orange secretions
Adverse effects of isoniazid
Hepatitis, peripheral neuropathy (B6 supplement), drug induced lupus
Adverse effects of pyrazinamide
Hepatitis, photosensitivity, hyperuricemia
Adverse effects of ethambutol
Optic neuritis, peripheral neuropathy
Adverse effects of streptomycin
Ototoxic and nephrotoxic
Pertussis/whooping cough is caused by
Bordetella
RVS is part of this viral family
Paramyxovirus
Tx of RVS/acute bronchiolitis
Humidified air
Beta agonist and epi if needed
Steroid if hx asthma
Rivavirin if severe or risky pt