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Old 03-21-2012
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Question Arterial Blood Gas and Electrolytes!

A man is admitted to the emergency room in unconcious state. You get ABGs, S/E and Urinary Electrolytes
Arterial: pH= 7.15 PaCO2= 30mmHg [HCO3]=10 mEq/L Cl-=100 mEq/L Na+=145 mEq/L
Urine: Na+= 100 mEq/L K+= 90 mEq/L Cl-=140 mEq/L

What is the likely cause of the patient's condition?

A. Hypovolemia
B. Metabolic Acidosis
C. Kidney dysfunction
D. Respiratory Alkalosis
E. Overuse of diuretic
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Old 03-21-2012
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I would say ...
Metabolic acidosis - Acidosis pH 7.15. alteration in HCO3 -> 10 / normal 22-28/
CO2 30 /normal 33-45/

Na is upper border of normal range /135-145/ and Cl -s normal (:
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Old 03-21-2012
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Ans .......B.......
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Old 03-21-2012
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Metabolic Acidosis with no compensation. B
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Old 03-21-2012
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Metabolic acidosis with anion gap
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Old 03-21-2012
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B .Metabolic acidosis but with partial compensation isn't it ?
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Old 03-22-2012
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metabolic acidosis with respiratory compensation; Plasma Anion Gap is 35 (145-(100+10)); therefore, grossly excessive acid in the body. Urinary anion gap is positive (100+90-140), so kidneys are not excreting acid. Primary cause is likely to be acid retention by kidneys.

Therefore correct answer is KIDNEY DYSFUNCTION
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Old 03-22-2012
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Quote:
Originally Posted by bunny View Post
metabolic acidosis with respiratory compensation; Plasma Anion Gap is 35 (145-(100+10)); therefore, grossly excessive acid in the body. Urinary anion gap is positive (100+90-140), so kidneys are not excreting acid. Primary cause is likely to be acid retention by kidneys.

Therefore correct answer is KIDNEY DYSFUNCTION
I hated u for that but that was good !!!! thanks
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Acid-Base-, Electrolytes-, Physiology-, Step-1-Questions

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