Osmolality: Definition, Calculations & Formula


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question 1 of 3

Which term refers to the osmolality of blood?

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1. What is the basic result obtained from an osmolality test?

2. Which is normally seen with a dehydrated patient?

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About This Quiz & Worksheet

This quiz will assess what you know about calculating osmolality. Passing this multiple-choice quiz will require you to know about the types of information provided by an osmolality test.

Quiz & Worksheet Goals

Your understanding of the following will be tested during this quiz:

  • Term for measuring the osmolality of blood
  • Information an osmolality test provides
  • What is commonly found in a dehydrated patient
  • Common cause of both low urine and low serum osmolality
  • Serum osmolality and urine osmolality levels in a diabetes patient

Skills Practiced

  • Knowledge application - use your knowledge to answer questions about calculating osmolality
  • Interpreting information - verify that you can read information about measuring the osmolality of blood and interpret it correctly
  • Information recall - access the knowledge you've gained regarding a cause of low serum osmolality

Additional Learning

To gain an even better understanding of this subject, check out the related lesson titled Osmolality: Definition, Calculations & Formula. Here are some of the topics you'll find in this lesson:

  • What solutes are
  • Formula used to calculate serum osmolality
  • How to properly calculate urine osmolality
  • Normal osmolality ranges
  • Causes of abnormal serum or urine osmolality