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Pediatrics General 8eee412d

Which is seen in nephrotic syndrome

A
Low serum calcium
B
Raised AT-III
C
Low lipid
D
Platelet activation
High-Yield Explanation
NEPHROTIC SYNDROME:-  Characterised by massive proteinuria, hypoalbuminemia and edema, hyperlipidemia is often associated. Some patients show hematuria and hypertension. Heavy proteinuria( more than 1g/metre square/day) is the underlying abnormality leading to hypoalbuminemia ( serum albumin below 2.5g/dl). The resultant fall in plasma oncotic pressure leads to interstitial edema and hypovolemia. This stimulates the renin-angiotensin-aldosterone axis and ADH secretion that enhances sodium and water retention. Hypoalbuminemia also induces hepatic synthesis of beta-lipoproteins resulting in hypercholesterolemia.   Main cause of nephrotic syndrome in children is associated with minimal change disease. Other causes include amyloidosis, vasculitis, SLE, postinfectious glomerulonephritis, and hepatitis B nephropathy. Steroid sensitive nephrotic syndrome:- MCNS accounts for 80% cases of nephrotic syndrome. Electron microscopy shows non-specific obliteration of epithelial foot processes. Immunofluorescence studies show deposits of occasional mesangial IgM.   Lab findings- urine examination shows heavy proteinuria. Hyaline and granular casts are present. Serum albumin is low. Hypercholesterolemia imparts a milky appearance to plasma. Blood urea and creatinine values within normal range. Blood levels if IgG low and IgM elevated. Low serum calcium level. Steroid-resistant nephrotic syndrome:- Homozygous or complete heterozygous mutations in genes encoding podocyte proteins, including podocin(NPHS2), nephrin(NPHS1) and Wilms a tumour (WT1) genes.

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