20: ECGs, Abnromal Rhythms

Question 1

What can cause sinus tach?

Answer 1

Pregnancy, emotions, anxiety, exercise, drugs, hyperthyroid, fever, anemia, hypovolemia

Question 2

Bradycardia causes

Answer 2

Vagal response, sleep apnea, meds, MI, hypothyroid

Question 3

Two types of ectopic beats

Answer 3

PACs, PVCs

Question 4

What is an ectopic beat?

Answer 4

Cardiac depol originates from a place other than the normal pathway

Question 5

Ventricular bigeminy, Trigeminy, etc.

Answer 5

When a PVC occurs every other beat: bigeminy

PVC every third beat: trigeminy, etc.

Question 6

AV block

Answer 6

Any conduction block between sinus node and Purkinje fibers

Question 7

How to ID any AV block

Answer 7

Examine the relationship between P waves and QRS complexes