EKG AcquisitionPregunta 49 de 100
How much time and voltage does one large box on standard EKG paper represent?
a.0.04 second and 1 millimeter of height
b.0.10 second and 10 millimeters of height
c.0.20 second and 5 millimeters of height
d.0.50 second and 5 millimeters of height
Explicación
A large box is five small boxes across and five tall, so it represents 0.20 second horizontally and 5 millimeters, or 0.5 millivolt, vertically at standard calibration. The 0.04 second and 1 millimeter values describe a small box. The 0.10 and 0.50 second values do not match standard paper, where five large boxes equal one second.
Practica las 100 preguntas gratis — sin registro.
Preguntas relacionadas de este tema
- A tracing shows the baseline slowly drifting up and down in a wave pattern that matches the patient's breathing. What should the technician check first?
- What does the standardization mark on an EKG tracing indicate when it is 10 mm tall?
- At the standard paper speed, how much time does one small box represent, and what is that speed?
- A patient has a hairy chest and oily skin. What is the correct skin preparation before applying chest electrodes?
- A technician is setting up 5-lead telemetry monitoring. Which placement follows the standard color convention?
- How many electrodes are applied for standard 3-lead cardiac monitoring, and what do they produce?
Última revisión: · proceso editorial
Equipo Editorial de PrepPass · Verificado con NHA Certified EKG Technician (CET) Exam · Cómo revisamos