E. (1) sea shell fossils (2) it is made of old ocean floor that got uplifted during collision. 4. At convergent plate boundaries, the volcanic mountain chains that form are called (1) ________ in an ocean-. ocean setting and (2) __________ in an ocean-continent setting.
Poor R wave progression is a vague term used to describe the transition in voltage in the precordial leads of an electrocardiogram (ECG). It is not a diagnosis but simply describes a pattern frequently noted. In a normal individual there is a progressive increase in the magnitude of the voltage in the leads from V1 to V4.
We have put Rhythm as step 1 as it is of great importance. Arrhythmias include the most life-threatening ECG abnormalities. In most settings, however, the rhythm will be sinus. If the rhythm is not sinus, the Arrhythmias algorithm should be followed. Sinus arrhythmias. Some variants of sinus rhythm exist: Asystole; Sinustachycardia (>100 beats per minute)