-When pressure in the capillary is greater, fluid forced to interstitial
-capillary filtration at the arterial end
-capillary reabsorption at the venous end
Hypovolemia - answer✔a loss of both water & solutes
-EX: hypovolemic shock: frank blood loss
Third-space fluid shift - answer✔distribution of fluid to compartments
-compartments include: peritoneal, interstitial, etc.
-once compartmentalized, difficult to move back to extracellular fluid
Hypervolemia - answer✔a excess of both water & sodium
-EX: renal failure, heart failure, IV fluid excess
Sodium - answer✔major extracellular cation
-Maintains osmotic pressure in ECF
-"water goes where salt is"
-kidneys conserve Na+ when needed
-aldosterone: conserves Na+/excretes K+
Which nursing intervention for a patient with dehydration caused by vomiting and diarrhea
needs correction?
A) initiating prescribed peripheral IV device and administering 1000mL of 0.9% NaCl with
10mEq KCl
B) providing oral fluids at the temperature the patient prefers
C) offering fluid frequently in large amounts as tolerated
D) providing antiemetics as prescribed - answer✔C
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