« previous next »

Author Question: An abnormal (i.e., pathologic) Q wave indicates the presence of dead myocardial tissue. Indicate ... (Read 101 times)

bobthebuilder

  • Hero Member
  • *****
  • Posts: 567
on: Jun 25, 2018
An abnormal (i.e., pathologic) Q wave indicates the presence of dead myocardial tissue.
 
  Indicate whether the statement is true or false

Question 2

The _____ artery supplies the right atrium and ventricle with blood.
 
  a. right coronary
  b. left main coronary
  c. left circumflex
  d. left anterior descending


scottmt

  • Sr. Member
  • ****
  • Posts: 322
Reply #1 on: Jun 25, 2018
Answer to Question 1

T
An abnormal (i.e., pathologic) Q wave is more than 0.04 seconds in duration or more than one third the height of the following R wave in that lead. Myocardial infarction is one possible cause of abnormal Q waves. In the early hours of infarction, an abnormal Q wave may not have developed to its full width or amplitude. Therefore a single ECG tracing might not identify an abnormal Q wave. In a patient with a suspected myocardial infarction, be sure to look at Q waves closely. Even if the initial ECG tracings do not show Q waves that are more than 0.04 seconds in duration or equal to or more than one third of the amplitude of the QRS complex, pathology must be considered if the Q waves become wider or deeper in each subsequent tracing.

Answer to Question 2

A
The right coronary artery supplies the right atrium and ventricle with blood.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Illness; diuretics; laxative abuse; hot weather; exercise; sweating; caffeine; alcoholic beverages; starvation diets; inadequate carbohydrate consumption; and diets high in protein, salt, or fiber can cause people to become dehydrated.

Did you know?

The effects of organophosphate poisoning are referred to by using the abbreviations “SLUD” or “SLUDGE,” It stands for: salivation, lacrimation, urination, defecation, GI upset, and emesis.

Did you know?

Acute bronchitis is an inflammation of the breathing tubes (bronchi), which causes increased mucus production and other changes. It is usually caused by bacteria or viruses, can be serious in people who have pulmonary or cardiac diseases, and can lead to pneumonia.

Did you know?

Adolescents often feel clumsy during puberty because during this time of development, their hands and feet grow faster than their arms and legs do. The body is therefore out of proportion. One out of five adolescents actually experiences growing pains during this period.

Did you know?

The senior population grows every year. Seniors older than 65 years of age now comprise more than 13% of the total population. However, women outlive men. In the 85-and-over age group, there are only 45 men to every 100 women.

Dead polar bears Dead polar bears
Hokusai, The Great Wave off Kanagawa, from the series Thirty-Six Views of Mount Fuji. Hokusai, The Great Wave off Kanagawa, from the series Thirty-Six Views of Mount Fuji.
Outcome of myocardial infarction. Forty percent of 1-week survivors have late complications ... Outcome of myocardial infarction. Forty percent of 1-week survivors have late complications ...
Tissue Tissue
Normal (A) and Abnormal (B) Balance between Dopamine and Acetylcholine Normal (A) and Abnormal (B) Balance between Dopamine and Acetylcholine
The Tendons Are the Bands of Tissue That Connect Muscle to Bone The Tendons Are the Bands of Tissue That Connect Muscle to Bone
Video: Introduction to Dysrhythmia

For a complete list of videos, visit our video library