The Apprentice Doctor

Case Study 66 #usmle #endocrinology

Discussion in 'Case Studies' started by aida mak, Dec 17, 2015.

  1. aida mak

    aida mak Bronze Member

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    A 22 year-old man presents to the clinic due to excessive urination. He goes to the restroom almost every 15 minutes. His physical examination is otherwise normal. Laboratory tests show

    Serum Na: 140 mEq/L

    Urine output: 4 L/24 hours

    Urine is negative for glucose and protein and no pus cells

    Urine Na: 18 mEq/L

    Urine osmolality: 260 mOsm/kg after 4h fluid deprivation.

    What is the most likely diagnosis?

    A-Diabetes mellitus

    B-Diabetes insipidus

    C-Psychogenic polydipsia

    D-Urinary tract infection

    E-Solute diuresis

    Answer
     

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    Last edited: Sep 3, 2016
    aida mak, Dec 17, 2015
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  2. Heyfort kasakula

    Heyfort kasakula Famous Member

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    Heyfort kasakula, Jul 21, 2017
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