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**A ''isotonic'' solution is one that has an osmotic pressure '''the same''' as plasma.
**A ''isotonic'' solution is one that has an osmotic pressure '''the same''' as plasma.
**A ''hypertonic'' solution is one that has an osmotic pressure '''higher''' than plasma.
**A ''hypertonic'' solution is one that has an osmotic pressure '''higher''' than plasma.
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*''''''Hypovolaemia''''' is a reduction in normal blood volume which can be caused by:
+
*'''''Hypovolaemia''''' is a reduction in normal blood volume which can be caused by:
** Excessive sweating
** Excessive sweating
** Water deprivation
** Water deprivation