SPDX Week 3: Electrocardiography Prelims Quiz

The ______ barked

The ______ meowed

The ______ chirped

The ______ roared

The ______ hissed

The ______ neighed

Dr. Luigi Galvani first noted that electrical current could be recorded from ______ muscles.

The first electrogram (ECG) from the intact human heart was recorded with a mercury capillary electrometer by Augustus D. Waller at ______ Hospital, London.

Einthoven labeled the corrected derived deflections PQRS and T and developed a correction formula for ______.

The term 'Elektrokardiogramm' (EKG) was first used in an article by Willem Einthoven in ______.

Over 400,000 people enrolled in a study to determine whether a wearable technology can identify irregular ______ on a first String Apple smart watch.

ECG/EKG can be used interchangeably and records the heart’s ______ signal.

Conduction starts with ______ node (pacemaker of the heart)

P wave (0.08 - 0.10 secs) spread out depolarization wave to ______

Heart rate: 60 - 100 ______

PR interval: 0.12 - 0.20 secs ______

Ventricular rate: checks between 2 R waves ______

Depolarization - cells become more positive inside, normal if within the cardiac ______

Einthoven's Triangle is formed by lead 1, 2, and ______

Lead II = Lead I + Lead ______

Lead aVR is located towards the right arm uppermost right side of the heart and always presents as negative deflective waves pointing ______

Lead aVL is directed towards the left arm for left extremity leads, aVL stands for augmented ______

Lead aVF is directed towards the left foot, the lowermost portion of the heart which is the ______

Chest leads, also known as the Augmented Limb Leads, usually augment the potential by ______ than the original potential

Each small square corresponds to 0.1 mV amplitude on the ______

Standard voltage sensitivity calibration: each 1 mV gives a 10 mm deflection on the ______

Standard paper speed is 25 mm/second, each large square corresponds to ______ sec

If square size is not specified, it is automatically a ______

ST segment → end of S and beginning of T on the ______

QRS complex is a condition of several ______