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Old 07-17-2011
dr.dhruvdesai's Avatar
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RBC RBC and Osmolality

An RBC is put into an Nacl solution...it shows sudden increase in volume in few mins followed by partial decrease in vol. but overall volume is increased...the osmolality of nacl solution is 70....can anyone explain y???

y cant an osmolality of 155 be an answer??
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Old 07-17-2011
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Originally Posted by dr.dhruvdesai View Post
An RBC is put into an Nacl solution...it shows sudden increase in volume in few mins followed by partial decrease in vol. but overall volume is increased...the osmolality of nacl solution is 70....can anyone explain y???

y cant an osmolality of 155 be an answer??
with an osmolality of nacl solution of 155 = overall volume of the RBC will decrease (normal RBCs have an Osm < 155)
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Old 07-17-2011
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thought osm was 290-300 mosm
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Old 07-17-2011
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thought osm was 290-300 mosm
yup...I was thinking in [Na+]...same answer though. tx.
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Old 07-17-2011
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but y not 70...would cause the same thing...and probably thats the rite ans too
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