What information is recorded by lead 1?
NHA EKG
| Question | Answer |
|---|---|
| An EKG tech is performing a standard 12-lead EKG for a pt. What information is recorded by lead I? | Electrical activity between the right arm and the left arm. |
Which of the following methods can be used to calculate both regular and irregular rhythm’s?
Count the number of QRS complexes over a 6-second interval. Multiply by 10 to determine heart rate. This method works well for both regular and irregular rhythms and for bradycardias. It’s recommended for irregular rhythms and for bradycardias.
In which of the following locations should the electrode for lead V4 be placed?
Place V4 (brown) chest lead in the fifth intercostal space, mid-clavicular line.
Which of the following lead groups are bipolar leads?
A 12-lead ECG consists of three bipolar limb leads (I, II, and III), the unipolar limb leads (AVR, AVL, and AVF), and six unipolar chest leads, also called precordial or V leads, ( , , , , , and ).
Which of the following statements made by an EKG Tech correctly prepares the patient for telemetry monitoring?
EKG test questions
| Question | Answer |
|---|---|
| Which of the following statements made by the EKG technician correctly prepares the patient for telemetry monitoring? | “Electrodes will be replaced once a week while you are in the hospital” |
What signs and symptoms indicate that an EKG technician should terminate a stress test?
During the test You should not continue the test if you feel chest pain or if you get dizzy. Your technician also stops the test if your blood pressure drops or spikes abnormally or if you have an arrhythmia.
What does irregularly regular mean?
A rhythm is regularly irregular if it has some form or regularity to the pattern of the irregular complex. An example would be a rhythm in which every third complex comes sooner than the preceding two.
What type of ECG artifact is caused by another piece of electrical equipment or wires?
Electromagnetic interference (EMI) artifact usually results from electrical power lines, electrical equipment, and mobile telephones.
What leads monitor atrial rhythms and Hemi blocks?
lead I helps monitor atrial arrhythmias and hemiblocks. lead II commonly aids in routine monitoring and detecting of sinus node and atrial arrhythmias.
What are unipolar and bipolar leads?
A unipolar lead is a single conductor lead with an electrode located at the tip. A bipolar lead has two separate and isolated conductors within a single-lead; the distal electrode is located at the tip of the lead and the other one is usually about 2 cm more proximal.
What does einthoven’s triangle represent?
[ īnt′hō′vənz ] n. An imaginary equilateral triangle having the heart at its center and formed by lines that represent the three standard limb leads of the electrocardiogram.
What is medical telemetry?
The term telemetry comes from the words tele meaning “remote” and metron meaning “measure.” In medicine, telemetry refers to the process of monitoring a patient’s vital signs where that information is collected and displayed in a central location for healthcare providers to review.
When applying a Holter monitor how many monitor leads are placed on the patient?
The Holter monitor is a recording device. The monitor is battery-powered and can be placed in a pocket or pouch. The monitor has 5 to 7 wires called leads. The leads attach to metal disks called electrodes, which are placed on your chest.
How does caffeine affect a treadmill stress test?
Current imaging guidelines recommend the avoidance of caffeine intake for at least 12–24 h in patients undergoing adenosine stress tests [7, 8], since caffeine 1) is a nonselective competitive inhibitor of adenosine2A-receptors, which might hamper the vasodilator effect of adenosine, and 2) increases sympathetic …
What is irregularly irregular?
An irregularly irregular rhythm has no pattern at all. All of the intervals are haphazard and do not repeat, with an occasional, accidental exception.
What is irregular beat?
An arrhythmia is an irregular heartbeat. It means your heart is out of its usual rhythm. It may feel like your heart skipped a beat, added a beat, or is “fluttering.” It might feel like it’s beating too fast (which doctors call tachycardia) or too slow (called bradycardia). Or you might not notice anything.
Which leads in an ECG monitor electrodes placed on a patient’s arms and legs?
Which leads in an ECG monitor electrodes placed on a patient’s arms and legs? For right arm. For left arm.
How does skeletal muscle contraction cause artifact on the electrocardiogram?
Skeletal muscle tremors are known to frequently cause ECG abnormalities that may mimic various types of arrhythmias. Muscle contraction produces an electromyographic signal because of the flow of electrically charged ions. These may appear on an ECG as narrow, rapid spikes that can mimic narrow complex tachycardia.
What is the difference between unipolar and bipolar?
They are sometimes confused because both can include depressive episodes, but there are some key differences. The main difference between the two is that depression is unipolar, meaning that there are no periods of abnormally elevated mood, while bipolar disorder includes symptoms of mania.
What are the 5 themes of geography?
The 5 Themes of Geography. 1 Location, Place, Human-Environment Interaction, Movement, and Region. Wolfgang_Steiner / Getty Images. By. Matt Rosenberg. Updated July 13, 2019. The 2 Location. 3 Place. Place describes the human and physical characteristics of a location. 4 Human-Environment Interaction. 5 Movement.
What are the two types of geographic features?
Most studies of geography begin with the mention of this theme of geography. Location can be of two types: absolute location and relative location. In the former case, the location of a place is defined by its latitude and longitude or its exact address.
What is the theme of movement in geography?
The theme of movement examines this and is one of the most essential parts of geographical exploration. It deals with the examination of immigration, emigration, populations, and distribution in the regions and countries of the world. Region – Any area on earth that is comprised of places with a unifying attribute is called a region.
Which theme of geography is associated with toponyms?
This theme of geography is associated with toponym (the name of a place), site (the description of the features of the place), and situation (the environmental conditions of the place). Each place in the world has its unique characteristics.