the ans is 72 kg the key is to see hw mch has been absorbed in body by subtracting from the amount xcreted by day 4 no absorption has occured n in the last three days person has absorbed 300mmol NaCl n this is equal to 2 kg hence the wt is 72

 

good question..,is it 4.)72kg:notsure:

 

Can someone explain how "injection of mineralcortisone" impact the Na metabolism, how are we supposed to use this information in this question?

 

A mineral corticosteroid would mean mineralocorticoid ... which is Aldosterone!

 

Hope2 pass, We all know mineralcorticoid is aldosterone. what I was asking is how we use this information, does the aldosterone injection affects the answer or it is just a smoking gun?

 

Oh ok, Well its just a distractor coz you dont need to use that information to answer the question! All we need is the amount of intake & excretion of Na.

Intake Excreted Reabsorbed
Day 1 - 200 30 170
Day 2 - 200 90 110
Day 3 - 200 180 20
Day 4 - 200 200 0

Total reabsorbed in 4 days = 300 mmol
Since 150 mmol = 1 Kg, the pt gained a total of 2 Kg, therefore Ans = 72 Kg.