Nurs 115 Final exam: Neuro, electrolytes, ventilation, and Acid base questions and answers 2026 liberty university

Nurs 115 Final exam: Neuro, electrolytes, ventilation,

and Acid base questions and answers 2026 liberty

university

What factors determine the water weight? ANS>> Infants have greater water
n, n, n, n, n, n, n, n, n, n,




weight

Women have lower water weight n, n, n, n,




n, Obese people have lower water
n, n, n, n,




weight
n,




After age 60 water content drops to about 45%
n, n, n, n, n, n, n, n,




Skin is n, n, so it snaps right back ANS>> Elastic
n, n, n, n, n, n,




Why would skin elasticity to go down? ANS>> Decrease in interstitial fluid
n, n, n, n, n, n, n, n, n, n, n,




What is ECF? ANS>> Extracellular fluid
n, n, n, n, n,




Fluid outside of the cell
n, n, n, n,




Either interstitial (in between tissues) or intravascular (within the vessel)
n, n, n, n, n, n, n, n, n,




What is ICF? ANS>> Intracellular fluid
n, n, n, n, n,

,1 n,/ n,15

,Fluid within or inside the cell
n, n, n, n, n,




What is the average water weight for young males?
n, n, n, n, n, n, n, n,




What is the average water weight for young females? ANS>> For males it is 60%
n, n, n, n, n, n, n, n, n, n, n, n, n, n,




For females it is 50%
n, n, n, n,




What electrolytes are considered cations?
n, n, n, n,




What type of charge does a cation have? ANS>> Sodium, potassium, calcium, and
n, n, n, n, n, n, n, n, n, n, n, n,




magnesium are cations n, n,




n, Cations have positive charges
n, n, n,




What electrolytes are considered anions?
n, n, n, n,




What type of charge does a anion have? ANS>> Chloride, bicarbonate, and
n, n, n, n, n, n, n, n, n, n, n,




phosphate are anions n, n,




Anions have a negative charge
n, n, n, n,




What electrolytes are ICF? ECF? ANS>> IntraCF electrolytes - (2+/1-) - generally
n, n, n, n, n, n, n, n, n, n, n,




smaller numbers - n, n,




• Potassium - K+ permeates cell membranes n, n, n, n, n,




2 n,/ n,15

, • Phosphate - P- (aka phosphate) n, n, n, n,




• Magnesium - Mg+ n, n,




ExtraCF electrolytes - (2+/2-) (generally larger numbers
n, n, n, n, n, n,




• Sodium - Na+ n, n,




• Chloride - Cl- n, n,




• Calcium - Ca+ n, n,




• Bicarbonate - HCO3 n, n,




Osmolality measures n, n,




Osmolarity measures n, n, ANS>> Kilograms n,




Liters



What are the normal levels of sodium in the blood? ANS>> 135 - 145 mEq/L
n, n, n, n, n, n, n, n, n, n, n, n, n, n,




What is the main ECF cation? ANS>> Na+
n, n, n, n, n, n, n,




What does sodium do for you? ANS>> Controls body water distribution and
n, n, n, n, n, n, n, n, n, n, n,




governs osmolarity (solute to water ratio)
n, n, n, n, n,




n, Controls water distribution by osmosis
n, n, n, n,




3 n,/ n,15