NURS 115- Test four Study Guide
This is a guide for student preparation for testing in NURS 115. It is understood that the student is responsible for
all course material designated each test including course readings, in/out of class study/ activities and lecture
material
RENAL FUNCTION
Function of glomerulus, loop of Henle
Common lab tests for renal function, how and why we use them
Renin release and RAAS
Erythropoietin
Diuretics, types, use
Fluids and Electrolytes
I. Know all electrolytes
a. Cations: Sodium, Potassium, Calcium, Magnesium
b. Anions: Chloride, Bicarbonate, Phosphate/phosphorous
c. What they do
i. Function
ii. Levels
1. ICF Electrolytes (2+/1-)
a. Potassium (K+)
b. Phosphorus (P-): aka Phosphate
c. Magnesium (Mg+)
2. ECF Electrolytes: (2+/2-)
a. Sodium (Na+)
i. Main ECF Cation
ii. 135-145 mEq/L
iii. Controls body water distribution and governs osmolarity
(solute to water ratio)
b. Chloride (Cl-)
c. Calcium (Ca+)
d. Bicarbonate (HCO3-)
d. Know all fluid compartments
i. ICF: Intracellular fluid
ii. ECF: Extracellular Fluid: fluid outside the cell, aka either interstitial (aka “third space”)
or intravascular.
iii. ICF and ECF are separated by capillaries and membranes
iv. And associated electrolytes.
II. Know about insensible water loss
III. Symptoms of fluid overload
IV. Relationship of phosphate and calcium
V. Difference of water in the body of males and females
VI. How calcium is absorbed and what is it associated with.
VII. Specific gravity of urine, Oliguria
VIII. Hypovolemia/ hypervolemia
IX. Know labs such as creatinine, BUN as related to renal function
X. Know what signs and symptoms you would see in patients with fluid deficits and fluid excess.
Including specific gravity, VS, and other signs and symptoms
XI. Know about third spacing, edema
Neurologic
