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

Author Question: When an Allen test result is negative, blood for blood gas analysis should be drawn from which of ... (Read 52 times)

ap345

  • Hero Member
  • *****
  • Posts: 537
on: Jul 16, 2018
When an Allen test result is negative, blood for blood gas analysis should be drawn from which of the following sites?
 
  a. Earlobe c. Brachial artery
  b. Radial artery d. Side of the heel

Question 2

Which of the following events can lead to ventricular fibrillation?
 
  a. A ventricular rate of ninety beats a minute
  b. A premature ventricular beat that occurs during the T wave
  c. The presence of saw tooth waves instead of P waves on an electrocardiogram
  d. An increased width of the QRS complex


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

T4T

  • Sr. Member
  • ****
  • Posts: 348
Reply #1 on: Jul 16, 2018
Answer to Question 1

ANS: C
Another sampling site, such as the brachial artery, should be chosen if the result of a modified Allen test is negative.

Answer to Question 2

ANS: B
A ventricular rate of ninety beats a minute is within normal limits. A premature ventricular beat during the T wave would be immediately after the relative refractory period and could lead to ventricular tachycardia or ventricular fibrillation. Saw toothed waves instead of P waves indicate that atrial flutter is present. An increased width of the QRS is associated with any ventricular arrhythmia.


ap345

  • Member
  • Posts: 537
Reply 2 on: Jul 16, 2018
Great answer, keep it coming :)

Jossy

  • Member
  • Posts: 336
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

Signs of depression include feeling sad most of the time for 2 weeks or longer; loss of interest in things normally enjoyed; lack of energy; sleep and appetite disturbances; weight changes; feelings of hopelessness, helplessness, or worthlessness; an inability to make decisions; and thoughts of death and suicide.

Did you know?

In most cases, kidneys can recover from almost complete loss of function, such as in acute kidney (renal) failure.

Did you know?

People who have myopia, or nearsightedness, are not able to see objects at a distance but only up close. It occurs when the cornea is either curved too steeply, the eye is too long, or both. This condition is progressive and worsens with time. More than 100 million people in the United States are nearsighted, but only 20% of those are born with the condition. Diet, eye exercise, drug therapy, and corrective lenses can all help manage nearsightedness.

Did you know?

More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.

Did you know?

Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.

The Ames test for mutagenicity. The Ames test for mutagenicity.
Pichia test Pichia test
Nonverbal communications convey strong, powerful messages that may be negative or positive. Nonverbal communications convey strong, powerful messages that may be negative or positive.
Common Blood Chemistry Tests Common Blood Chemistry Tests
Return of oxygenated blood to the heart and entry into the aorta (red = oxygenated blood, blue = ... Return of oxygenated blood to the heart and entry into the aorta (red = oxygenated blood, blue = ...
Inflamed skin (dermatitis) can result from pellagra Inflamed skin (dermatitis) can result from pellagra
Video: Calvin cycle (The light-independent reactions )

For a complete list of videos, visit our video library