Using the rule of 1500, what is a more precise rate? (hint: divide 1500 by number of small boxes) The image displays an electrocardiogram (ECG) tracing, which is a graphical representation of the electrical activity of the heart over a period of time. It shows consecutive heartbeats, each represented by the characteristic pattern of a P wave, QRS complex, and T wave.### Detailed Explanation:1. **Grid Background**: The ECG tracing is printed on a graph paper grid. Each small square typically represents 0.04 seconds in time (horizontally) and 0.1 millivolts in amplitude (vertically).2. **P Wave**: The small upward wave preceding each QRS complex represents atrial depolarization.3. **QRS Complex**: The sharp, tall spikes indicate ventricular depolarization. This is the most pronounced part of the cycle, illustrating the main electrical impulse as the heart contracts.4. **T Wave**: The modest upward wave following each QRS complex reflects ventricular repolarization.5. **Regularity**: The heart rhythm shown is regular, as the intervals between each QRS complex are consistent.The consistent pattern suggests a normal sinus rhythm, where each cardiac cycle is initiated by the sinoatrial (SA) node and conducted normally through the heart. Understanding ECGs is crucial for diagnosing various cardiac conditions.

An ECG is an electrical representation of the activities of heart.It helps us to determine different pathologies of heart, along with the heart rate, rhythm, etc.There are different waves of an ECG,P wave represent atrial depolarizationQRS complex depicts ventricular depolarization, in which the tallest wave in the R wave.T wave determine ventricular repolarization.There are several techniques to calculate the heart rate from an ECG, but the rule of 1500 is the most precise and doesn't require any additional equipment; instead, it only requires some math. But it is unusable when there are irregular rhythms In it, we divide 1500 by the number of little squares that occur between two successive R waves. Now, in this case, if we count, we get 11 small boxes between two successive R waves. Now, to determine heart rate, we divide 1500 by 11. So, heart rate = 1500/11 = 136.36 Thus, the heart rate is approximately 136 beats per minute. Thus, we may say that the patient is suffering from high heart rate or tachycardia.

Answered: Using the rule of 1500, what is a more…

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Using the rule of 1500, what is a more precise rate? (hint: divide 1500 by number of small boxes)

Phlebotomy Essentials

6th Edition

ISBN:9781451194524

Author:Ruth McCall, Cathee M. Tankersley MT(ASCP)

Publisher:Ruth McCall, Cathee M. Tankersley MT(ASCP)

Chapter1: Phlebotomy: Past And Present And The Healthcare Setting

Section: Chapter Questions

Problem 1SRQ

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