Pace Maker of the Heart - ANSThe Sino Atrial node is also known as the
100/60 -138/89 - ANSNormal BP range is
-0.1 eV for each box in the vertical direction
-typically there are 10 boxes in the vertical direction for QRS complexes, adding up to 1.0 eV -
ANSThe vertical lines in each of the boxes indicate:
Coreg and epinephrine - ANSWhat medication can change Atrial fibrillation to a sinus rhythm?
140-250 bpm - ANSWhat is the heart rate with a SVT?
-Stimulate the sympathetic nervous system, which is a division of the somatic nervous system
-increase the heart rate
-increase blood supply to the brain, heart, lungs and kidney
-cause the pupils to dilate - ANSMedications such as epinephrine and adrenaline do what?
Count the small boxes between two regular R peaks and divide them into 1500 - ANSThere are
several ways to calculate a heart rate, however the most exact method entails:
P wave - ANSAtrial depolarization and activation causes which wave to emerge after the resting
phase?
digoxin - ANSWhich of the medications is used to treat CHF, and can also cause hypokalemia?
QRS = 0.08-0.12 sec
PR = 0.12-0.20 sec
QT = 0.36 - 0.44 sec - ANSWhat are the measurements of QRS, PR, and QT?
beat slower - ANSThe parasympathetic nervous systems causes the heart to .....
slower - ANSWith respect to a heart rhythm that contains the P,Q, R, S and T wave, the wider
the QRS the _____________________ the heart rate.
heart block - ANSDamage to the AV node, essentially the entire conduction system is blocked
and the ventricles must resort to contracting at an intrinsic rate which is a much slower rate.
P wave - ANSMovement of impulse from SA Node through atrial muscles (contraction of both
simultaneously), in an ECG corresponds to depolarization of the atrial fibers (leads to
contraction)