This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Which of the following is the most characteristic electrocardiographic finding in myocardial ... (Read 35 times)

fasfsadfdsfa

  • Hero Member
  • *****
  • Posts: 554
on: Jul 16, 2018
Which of the following is the most characteristic electrocardiographi c finding in myocardial in-farction?
 
  a. T wave inversion c. ST segment depres-sion
  b. ST segment eleva-tion d. Down-ward-deflected Q waves

Question 2

What is the heart rate depicted on the following electrocardiogram?
 
  a. 60 c. 100
  b. 80 d. 120


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

bhavsar

  • Sr. Member
  • ****
  • Posts: 351
Reply #1 on: Jul 16, 2018
Answer to Question 1

ANS: D
When cardiac tissue fed by the left anterior descending and circumflex branches of the left cor-onary artery infarct, Q waves become abnormal most noticeably on the left precordial leads. As a result, the Q waves deflect downward instead of upward because of a lack of counterbalancing electrical forces on the affected side.

Answer to Question 2

ANS: B
Isolating 3 seconds out of the strip shows that there are 4 cardiac cycles in the 3-second period. Multiply 4 by 20. The heart rate is 80 beats/min.


fasfsadfdsfa

  • Member
  • Posts: 554
Reply 2 on: Jul 16, 2018
Thanks for the timely response, appreciate it

olderstudent

  • Member
  • Posts: 339
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

Patients who cannot swallow may receive nutrition via a parenteral route—usually, a catheter is inserted through the chest into a large vein going into the heart.

Did you know?

Pregnant women usually experience a heightened sense of smell beginning late in the first trimester. Some experts call this the body's way of protecting a pregnant woman from foods that are unsafe for the fetus.

Did you know?

Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.

Did you know?

Many supplement containers do not even contain what their labels say. There are many documented reports of products containing much less, or more, that what is listed on their labels. They may also contain undisclosed prescription drugs and even contaminants.

Did you know?

There used to be a metric calendar, as well as metric clocks. The metric calendar, or "French Republican Calendar" divided the year into 12 months, but each month was divided into three 10-day weeks. Each day had 10 decimal hours. Each hour had 100 decimal minutes. Due to lack of popularity, the metric clocks and calendars were ended in 1795, three years after they had been first marketed.

heart pathology myocardial infarction heart pathology myocardial infarction
Malignant melanoma. This photograph demonstrates the highly characteristic color of this tumor. Malignant melanoma. This photograph demonstrates the highly characteristic color of this tumor.
Finding the derivatives Finding the derivatives
Finding derivatives of Trig Functions - pt 4 Finding derivatives of Trig Functions - pt 4
finding resultant for the following force combinations finding resultant for the following force combinations
(a) The characteristic karyotype of Klinefelter syndrome. (b) The young man (left) in these photos h (a) The characteristic karyotype of Klinefelter syndrome. (b) The young man (left) in these photos h
Video: Chromosome structural organization/ Mechanisms for chromosome movement Animation

For a complete list of videos, visit our video library