Fluid, Cardia, Diuretics (quiz) Flashcards
T/F Potassium is the most abundant and important extracellular ion.
False - Potassium is an intracellular ion
T/F Potassium greatly affects cardiac and nerve function.
True
The fluid found within the body is composed of (IC) fluid and (EC) fluid.
IC = Intracellular EF= Extracellular
A hypotonic solution will cause a cell to do what?
Swell and burst.
Electrolytes are molecules that dissociate in water and are made up of what two things?
Cations & Anions
A low H+ concentration or high pH is termed what?
Alkalosis
List 5 reasons for fluid therapy
Dehydration, Hypovolemia, Electrolyte imbalance, nutrition, anemia
What is an isotonic solution?
A balanced solution, same concentration of ions.
example: Normal saline
What are the signs of fluid overload. List at least 3
Restlessness, Hyperpnea, serious nasal discharge, pitting edema, chemosis
What are the differences between crystalloids and colloids? 2 examples of each
Crystalloids - smaller molecule and pass through membranes (Normosol R & LRS)
Colloids - larger molecule and will stay in vascular space (Plasma & whole blood)
T/F Beta 1 receptors are located on the heart and are responsible for dilation of the blood vessels.
False - increases strength and rate of heart
T/F The QRS complex is the electrical recording of the repolarization of the ventricles.
False - depolarization
T/F Chrontropic drugs, positive or negative, have to do with the rate of heart contractions.
True
Which of the following is classified as an osmotic diuretic:
A. Furosimide C. Mannitol
B. Asprin D. Lasix
Mannitol - used with head trauma. Removes water simply through osmosis
Nitroglycerin is given primarily to achieve which of the following effects?
A. Vasodilator C. antiarrhythmetic
B. Vasoconstriction D. bradycardia
Vasodilator
Drugs classified as ACE inhibitors have what type of effect on the body?
A. Bronchodilation C. Increase str of contraction
B. vasodilation D. increase heart rate
Vasodilators
The diuretic drug used most commonly in patients with congestive heart failure is:
A. Mannitol C. Lidocaine
B. Furosemide D. Epinephrine
Furosemide - Lasix
Catecholamines (norepinepharine, epinapharine) are the body’s natural
A. diuretics C. positive inotropes
V. vasocontrictors D. enimas
Positive inotropes
The body has how much fluid?
60-75%
What is the most important and abundant ECF ion?
Sodium (Na+)
What is the primary ICF ion?
Potassium (K+)
Stimulation of the alpha-1 receptors are responsible for what action?
vasoconstriction
Stimulation of the beta-1 receptors are responsible for what action?
vasodilation
What is cardiac output?
Helps maintain blood pressure. Stroke volume x heart rate
SA node location
Right atrium
What does the P wave represent?
Atrial depolarization
Repolarization of the ventricles is represented by what wave?
T wave
