NURS 5315 MODULE 1 EXAM
QUESTIONS AND ANSWERS 100% PASS
2026/2027
Cell membrane composed of - ANS phospholipids, cholesterol, glycolipid
Role of phospholipids - ANS repairing the cell by folding
Cell membrane is highly permeable to - ANS CO2, O2, fatty acids, steroid hormones
Resting membrane potential - ANS slight difference in charge between ICF and ECF. Charge is
-70 to -85mV
Action potential - ANS sudden impulse and rapid change in resting membrane potential.
Depolarization - ANS charge is moving closer to zero and becoming more positive
Threshold potential - ANS occurs when the inside of the cell does not change at least 15 to
20mV and the action potential is not successfully reached
@2026 ALLRIGHTS RESERVED 1
, Repolarization - ANS occurs when the charge reaches zero and then returns back to the
baseline of -70 to -85mV
Refractory period - ANS cell membrane resists repolarization and cannot depolarize
Absolute refractory period - ANS membrane does not respond to any stimulus
Relative refractory period - ANS repolarization only occurs to very strong stimulus
Hyperpolarized - ANS charge is greater than -85mV. Cell is less excitable
Hypopolarized - ANS charge is less than -65mV. Cell is very excitable
Hypokalemia affects of resting membrane potential - ANS hyperpolarized, less excitable
Decrease in neuromuscular excitability, weakness, smooth muscle atony, paresthesias and
cardiac dysrhythmias
Hyperkalemia affects of resting membrane potential - ANS hypopolarized, more excitable
Peak T waves, K+ increases, widening QRS, cardiac standstill
Hypercalcemia affects of resting membrane potential - ANS hyperpolarized, less excitable
Weakness, hyporeflexia, lethargy, confusion, encephalopathy, short QT, depressed T waves
Hypocalcemia affects of resting membrane potential - ANS hypopolarized, more excitable
Tetany, hyperreflexia, circumoral paresthesias, seizures, dysrhythmias
@2026 ALLRIGHTS RESERVED 2
QUESTIONS AND ANSWERS 100% PASS
2026/2027
Cell membrane composed of - ANS phospholipids, cholesterol, glycolipid
Role of phospholipids - ANS repairing the cell by folding
Cell membrane is highly permeable to - ANS CO2, O2, fatty acids, steroid hormones
Resting membrane potential - ANS slight difference in charge between ICF and ECF. Charge is
-70 to -85mV
Action potential - ANS sudden impulse and rapid change in resting membrane potential.
Depolarization - ANS charge is moving closer to zero and becoming more positive
Threshold potential - ANS occurs when the inside of the cell does not change at least 15 to
20mV and the action potential is not successfully reached
@2026 ALLRIGHTS RESERVED 1
, Repolarization - ANS occurs when the charge reaches zero and then returns back to the
baseline of -70 to -85mV
Refractory period - ANS cell membrane resists repolarization and cannot depolarize
Absolute refractory period - ANS membrane does not respond to any stimulus
Relative refractory period - ANS repolarization only occurs to very strong stimulus
Hyperpolarized - ANS charge is greater than -85mV. Cell is less excitable
Hypopolarized - ANS charge is less than -65mV. Cell is very excitable
Hypokalemia affects of resting membrane potential - ANS hyperpolarized, less excitable
Decrease in neuromuscular excitability, weakness, smooth muscle atony, paresthesias and
cardiac dysrhythmias
Hyperkalemia affects of resting membrane potential - ANS hypopolarized, more excitable
Peak T waves, K+ increases, widening QRS, cardiac standstill
Hypercalcemia affects of resting membrane potential - ANS hyperpolarized, less excitable
Weakness, hyporeflexia, lethargy, confusion, encephalopathy, short QT, depressed T waves
Hypocalcemia affects of resting membrane potential - ANS hypopolarized, more excitable
Tetany, hyperreflexia, circumoral paresthesias, seizures, dysrhythmias
@2026 ALLRIGHTS RESERVED 2
