QUESTIONS WITH CORRECT
ANSWERS GRADED A+
◍ what are adrenergic receptors.
Answer: superfamily of G protein coupled receptors
◍ are G protein couples receptors ionotropic or metabotropic.
Answer: metabotropic
◍ what are the 5 types of adrenergic receptors.
Answer: Alpha-1Alpha-2Beta-1Beta-2Beta-3
◍ What percentage of the human body is water?.
Answer: 60%
◍ Where is intracellular fluid located?.
Answer: Inside cells
◍ Extracellular fluid includes which of the following?.
Answer: Blood plasma
◍ what stimulate the adrenergic receptors.
Answer: catecholamines (epinephrine and norephinephrine)
◍ Water movement toward higher solute concentration is called:.
Answer: Osmosis
◍ when are catecholamines released.
Answer: during sympathetic drive
◍ sympathomimetric drugs.
Answer: drugs that mimic actions of epinephrine and norepinephrine
◍ Which electrolyte primarily controls fluid balance?.
, Answer: Sodium
◍ A patient with sodium level of 125 mEq/L is at risk for:.
Answer: Seizures
◍ What is the priority intervention for severe hyponatremia?.
Answer: Seizure precautions
◍ A potassium level of 6.5 mEq/L places the patient at risk for:.
Answer: Cardiac arrest
◍ Which ECG change is seen in hyperkalemia?.
Answer: Peaked T waves
◍ What is the priority action when giving IV potassium?.
Answer: Cardiac monitoring
◍ direct sympathomimetic drugs do what?.
Answer: bind and activate alpha and beta receptors
◍ indirect sympathomimetic drugs do what?.
Answer: increase endogenous neurotransmitter levels, increase synthesis,
decrease clerance/metabolims
◍ what removes/metabolizes norepinephrine.
Answer: MAO and COMT
◍ major actions of alpha 1 receptors.
Answer: contraction/constriction (vascular smooth muscle)dilation
(pupillary dilator muscle)hair erection (pilomotor smooth
muscle)contraction (prostate)
◍ major actions of alpha 2 receptors.
Answer: post synapic CNS neuron effectsplatelet
aggregationsadrenergic/cholinergic nerve terminalssome vascular smooth
musclelipolysis on fat cells
◍ Hypocalcemia causes which symptom?.
Answer: Tetany
, ◍ Hypercalcemia causes with symptom?.
Answer: Constipation
◍ where are beta 1 receptors found.
Answer: heart and juxtaglomerular cells (kidney)
◍ What is the normal pH range?.
Answer: 7.35-7.45
◍ actions of beta 1 receptors.
Answer: increase force/rate of contraction, increase HR, make renin
◍ A pH of 7.30 indicates?.
Answer: acidosis
◍ where are beta 2 receptors found.
Answer: respiratory, uterine, vascular smooth muscle, skeletal muscle, and
liver
◍ actions of Beta 2 receptors.
Answer: dilation/relation of smooth muscleincrease K+ uptake in skeletal
muscleglycogenolysis
◍ where are beta 3 receptors found.
Answer: bladder and fat cells
◍ Which condition causes respiratory acidosis?.
Answer: Hypoventilation
◍ actions of beta 3 receptors.
Answer: relax detrusor muscle and lipolysis
◍ Which condition causes metabolic alkalosis?.
Answer: vomiting
◍ Kussmaul respirations are seen in.
Answer: metabolic acidosis
◍ where are D1 receptors acting.