NBME

Delta G is amount of energy available to work. Delta G depends on
free energy diff between pdts and reactants.
Delta G=0, system in equilibrium and concn of pdts and reactants unchanged
Dellta G <0, EXERGONIC, spontaneous in forward directn to form pdts
Delta G>0, Spontaneous in reverse directn to form reactants
Here, delta G0 is largest in +5.7 Y--Z, so spontaneous in backward
direction, so Y will accumulate most

Renin is enzymes released by the juxtaglomerular apparatus of the
kidneys into
the renal vein in response to:
Hyperkalemia. Sodium depletion.
Hypovolemia. Decreased kidney blood perfusion

Prevention of CA ENTRY AND EXCITOTOXIN MEDIATED CELL DEATH
Stroke leads to o2 depletion - triggers buildup of excitatory NT
glutamate - NMDA receptors let in large amounts of Ca to destroy
glutamate. C entry leads to series of biochemical rcns which lead to
neuronal death. Mg prevents Ca entry and protects neurons.

What is total hemolytic complement?

Total hemolytic complement (CH50) is the best functional
assay of the complete complement sequence. CH50 is often
decreased in SLE, glomerulonephritis and other immune complex
diseases.A normal CH50 level indicates that all the
components, C1 through C9, are present.
C3 protein is the key molecule in both the classical and alternative
pathways and is present in the highest concentration.
Decreased levels of both C3 and C4 indicate classical pathway
activation. Decreased C3 levels with normal C4 levels indicate
alternate pathway activation.

Steptococcus pyogenes A

OMEPRAZOLE

Metoclopramide

D2 antagonist

class switching defect - c3b, IgG OPSONINS - CD40-CD40L INTERACTION DEFECTIVE

Dopamine

Anterior wall LV MI

LAD

Legionella

pseodoephedrine, alpha agonist