Hypovolemia/Dehydration
Nursing Concept Map
Hypovolemia/Dehydration
Pathophysiology = RT Risks for Developing Nursing Diagnosis
Hypovolemia is an isotonic
When compensation fails, hypovolemic
disorder. Fluid volume deficit
shock occurs in this sequence:• Deficient Fluid Volume r/t
decreases capillary hydrostatic ●decreased intravascular fluid volume
pressure and fluid
transport. Cells are deprived of normal ● diminished venous return, which Inadequate fluid intake
nutrients that serve as
reduces preload and decreases strokeand/or severe dehydration.
substrates for energy volume
production, metabolism, and
other cellular functions.
Decreased renal blood flow ●reduced cardiac output AEB Changes in the level of
triggers the reninangiotensin ●decreased MAP
consciousness.
system to increase sodium and ●impaired tissue perfusion
water reabsorption. The ●decreased oxygen and
cardiovascular system nutrient delivery to
compensates cells
by increasing heart rate,
●multiple organ dysfunction s yn• droImneeffective Tissue
cardiac contractility, venous
constriction, and systemic Perfusion r/t
vascular resistance, thus decreased stroke volume. AEB
emorrhage,when loss ofblood elements
increasing cardiac output and
mean arterial pressure (MAP). u
Hypovolemia n
, Eunice Black nursing map.
Hypovolemia/Dehydration
also triggers the thirst responseD, iagnostics l
releasing more antidiuretic hormon e● Increased e
and producing more aldosterone. blood urea s
nitrogen s
●Elevated c
serum a
creatinine u
level s
●Increased e
serum protein, d
hemoglobin, b
and y
hematocrit h