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Question

A.y-A. :E. 1Normal!!No Spac x' · Heading 1 Heading 2 Title Subtitle Subtle En. Emphasis Intense E. ont Paragraph Styles Jamie Richards is a 20 year old junior in college. She is majoring in biology and hopes someday to be a pediatrician. Beginning about a month ago, Jamie noticed that she was waking up once, sometimes twice a night, by the need to go to the bathroom. More recently, she has noticed that she needs to go to the bathroom during her school day much more frequently than before, sometimes as often as once every hour. At first, Jamie thought that her increased frequency of urination was due to all the coffee she drank, but when she reduced her coffee consumption to one cup in the morning, she still needed to go to the bathroom just as often. In addition, Jamie was buying bottled water by the case, and she found herself never without a beverage in her hand or nearby. She also noticed that her urine seemed pale and colorless. When Jamie told her mother or her problem, her mother became very concerned and arranged for Jamie to see the family physician. Her physician found no abnormalities on physical examination. However, a blood chemistry profile revealed the following Plasma sodium level 149 mEq/kg Plasma osmolality 308 mOsm/kg Fasting plasma glucose 85 mg/dl Urine osmolality 200 mOsm/kg Urine glucose: negative 1. What are the normals for the above? What does osmolality mean? How is it measured? Plasma sodium level Plasma osmolality

Explanation / Answer

Osmolality can be defined as the concentration of solute every litre of solution. This means Number if solute osmoles per solution litre. Osmol / Litre, SI unit is osmole. Plasma osmolality is the calculation of the electrolytes present in the Body balancing with water. This is measured using an instrument named as osmometer. The method is through freezing point depression calculation.

The normal values are:

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