EMCQ practice 3 Flashcards
(32 cards)
Drugs for treatment pulmonary hypertension
CCBs
Prostacyclin
Endothelin receptor antagonists
MRSA mechanism beta lactam resistance
Penicillin binding proteins with low affinity for beta lactam abx
Circadian rhythm bronchial tone
Constriction 6am
Dilation 6pm
Caffeine/ theophylline induced diuresis
Decreases sodium reabsorption and inc gfr
Ampicillin characteristics
Improved activity against gram -ve
Susceptible to beta lactamases
Alveolar ventilation equation
(Tidal volume-anatomic dead space)* resp frequency
Minute ventilation
TVxRR
does not account for dead space
VWF function
Adhesion and aggregation
Main is adhesion
P2Y12 receptor
Activated by ADP
Causes plt activation and adhesion
Visual from posterior pole occipital lobe
Macula
LGN lesion
Contralateral homonymous sectoranopia
SG transudate
<1.012
Selectins and integrins
Selectins neutrophil rolling
Integrin adhesions between neutrophils and endothelial cells
Causes shoulder dislocation
Hyperextension and lateral rotation
Dabigatran mechanism
Direct thrombin inhibitor
Mechanism dipyridamole
Inhibits adenosine uptake and cGMP phosphodiesterase activity
Vasodilator with some antiplatelet action
Strongest lateral ankle ligament
Posterior talofibular ligament
Cause chronic gastritis without h pylori
Autoimmune atrophic gastritis
Less than 10% chronic
Most common site peptic ulcer
1st part duodenum
Nerve at distal end humerus
Median
C fibre (pain) size
0.4-1.2
Quickest food gets to sigmoid
12 hours
Essential components thyroid hormone synth
Iodine
Ferritin
TSH
Mortality legionella immunosuppressed
50%
