What type of infarction does an EKG with leads V5 and V6 show QS or
QR waves produce? - ✔ ✔ Anterolateral
What rhythm is the result of an AV bypass tract? - ✔ ✔ WPW
The heart rate is usually between ____ and ____ beats per minute with
AIVR. - ✔ ✔ 50; 100
What rhythm is a type of polymorphic VT with marked QT interval
prolongation? - ✔ ✔ Torsades de pointes
Which is not a site of an infranodal block? - ✔ ✔ AV Node
Third degree AV block does not allow any impulses through the AV
node. - ✔ ✔ True
Where in the heart is the SA node located? - ✔ ✔ right atrium
What is the next location an action potential travels to after activating
the AV node? - ✔ ✔ Bundle of His
____________ causes shortening of the ST segment, whereas
___________ lengthens the ST segment. - ✔ ✔ Hypercalcemia;
hypocalcemia
What is a general rule that applies to the use of digitalis? - ✔ ✔ Any
arryhthmia and all degrees of AV block are possible with digitalis
therapy.
, Digitalis therapeutic effect produces a characteristic ____________
scooping. - ✔ ✔ ST-T Complex
_______________ can prolong the QRS complex and QT intervals and
cause sinus tachycardia. - ✔ ✔ Digitalis Glycosides or Digoxin
Where should the standardization mark be measured on the
electrocardiogram to ensure accuracy? - ✔ ✔ 10 mm
A normal P wave does not exceed ____ and in amplitude and is smaller
than ____ wide. - ✔ ✔ Does not exceed 2.5 mm; is smaller than 3
mm wide
Which leads are prominent U waves the most apparent? - ✔ ✔ V2
to V4
_____________ is the point where the QRS complex ends, and the ST
segment begins. J Point - ✔ ✔ J-Point
Which rhythm is most likely to appear in a patient with hyperkalemia? -
✔ ✔ Sinus Bradycardia
_____________ is a slight beat-to-beat variation when the SA node
does not pace the heart perfectly. - ✔ ✔ Sinus Arrhythmia
What is the cause of sinus tachycardia? - ✔ ✔ Intravascular Volume
Loss
Cardiac enlargement of the right atrium ____ the voltage of the P wave.
- ✔ ✔ Increases
An _________ more significant than the ________ is suggestive of right
ventricular hypertrophy. - ✔ ✔ R wave; S wave
QR waves produce? - ✔ ✔ Anterolateral
What rhythm is the result of an AV bypass tract? - ✔ ✔ WPW
The heart rate is usually between ____ and ____ beats per minute with
AIVR. - ✔ ✔ 50; 100
What rhythm is a type of polymorphic VT with marked QT interval
prolongation? - ✔ ✔ Torsades de pointes
Which is not a site of an infranodal block? - ✔ ✔ AV Node
Third degree AV block does not allow any impulses through the AV
node. - ✔ ✔ True
Where in the heart is the SA node located? - ✔ ✔ right atrium
What is the next location an action potential travels to after activating
the AV node? - ✔ ✔ Bundle of His
____________ causes shortening of the ST segment, whereas
___________ lengthens the ST segment. - ✔ ✔ Hypercalcemia;
hypocalcemia
What is a general rule that applies to the use of digitalis? - ✔ ✔ Any
arryhthmia and all degrees of AV block are possible with digitalis
therapy.
, Digitalis therapeutic effect produces a characteristic ____________
scooping. - ✔ ✔ ST-T Complex
_______________ can prolong the QRS complex and QT intervals and
cause sinus tachycardia. - ✔ ✔ Digitalis Glycosides or Digoxin
Where should the standardization mark be measured on the
electrocardiogram to ensure accuracy? - ✔ ✔ 10 mm
A normal P wave does not exceed ____ and in amplitude and is smaller
than ____ wide. - ✔ ✔ Does not exceed 2.5 mm; is smaller than 3
mm wide
Which leads are prominent U waves the most apparent? - ✔ ✔ V2
to V4
_____________ is the point where the QRS complex ends, and the ST
segment begins. J Point - ✔ ✔ J-Point
Which rhythm is most likely to appear in a patient with hyperkalemia? -
✔ ✔ Sinus Bradycardia
_____________ is a slight beat-to-beat variation when the SA node
does not pace the heart perfectly. - ✔ ✔ Sinus Arrhythmia
What is the cause of sinus tachycardia? - ✔ ✔ Intravascular Volume
Loss
Cardiac enlargement of the right atrium ____ the voltage of the P wave.
- ✔ ✔ Increases
An _________ more significant than the ________ is suggestive of right
ventricular hypertrophy. - ✔ ✔ R wave; S wave
