Isotonic fluid

Q) Isotonic fluid  solution is

A. Half normal saline
B. 1/5
th normal saline
C. Ringer lactate
D. Dextrose in Normal saline

Answer is free

Ringer lactate and Normal saline are isotonic fluid. they are useful in replacing GI losses. Ringer lactate has a bit of potassium as well.

Body actually requires bicarbonate and not lactate. Lactate is the more stable form in IV solutions and is used, it is converted by liver into bicarbonates.

Half NS is used in replacing losses when sodium concentration is high in the body, mainly as maintenance fluid

1/5th NS is hardly used clinically

Dextrose in Saline or DNS is used for maintenance and is not isotonic

Colon Volvulus

Q) Regarding colonic volvulus all are true except

a) Sigmoid volvulus without gangrene – colonoscopic decompression is the treatment of choice

b) Caecal bascule has high chance of gangrene due to torsion of mesentary

c) Splenic flexure volvulus has better prognosis than transverse colon volvulus

d) Recurrence rate after detorsion of cecal volvulus is 10-20%

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