PGMEE, MRCS, USMLE, MBBS, MD/MS
Read More
Amylase and Lipase in Acute Pancreatitis
Test Rise Peak Return to baseline Lipase 4-6 hours 48 8-14 days Amylase 2-4 hours 24-48 5-7 days Serum lipase elevation has a better diagnostic value as compared to serum amylase due to its superior specificity. Amylase has a low molecular weight and as a result can easily pass through…
PGMEE, MRCS, USMLE, MBBS, MD/MS
Read More
Glaucoma basics : Classification of Glacuoma
Definition: Glaucoma is a group of disorders characterized by a progressive optic neuropathy resulting in a characterstic appearance of the optic disc and a specific pattern of irreversible visual field defects that are associated frequently but not invariably with raised intraocular pressure (IOP). It is one of the commonest cause of irreversible blindness in the world. Open-angle…
PGMEE, MRCS, USMLE, MBBS, MD/MS
Read More
Perfusion and Diffusion Limited Gas Exchange
Under resting conditions, red blood cells move through the pulmonary capillary bed in approximately 0.75 seconds (transit time), although equilibration of oxygen and carbon dioxide takes place in about 0.25 seconds. In a diffusion limited gas exchange situation, the alveolar gas is still equilibrating with the blood cell at the…