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

Author Question: If the SA node fails to fire and the AV junction becomes the heart's primary pacemaker, the rhythm ... (Read 83 times)

scienceeasy

  • Hero Member
  • *****
  • Posts: 565
on: Jul 3, 2018
If the SA node fails to fire and the AV junction becomes the heart's primary pacemaker, the rhythm depicted on the EKG is called:
 
  a. normal sinus.
  b. atrial fibrillation.
  c. premature junctional complex.
  d. junctional escape.

Question 2

When considering the damaging effects of radiation, which of the following should be considered?
 
  a. Alpha radiation is harmless and of no concern.
  b. Time, distance, and shielding will provide the basis for protection.
  c. Never approach a victim who has been exposed to gamma radiation as it is potentially lethal to the rescuer.
  d. There is no shielding currently available for the effects of gamma radiation.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

carlsona147

  • Sr. Member
  • ****
  • Posts: 341
Reply #1 on: Jul 3, 2018
Answer to Question 1

D

Answer to Question 2

b
Rationale: a. Alpha radiation may present a significant risk of danger if ingested.
b. Correct.
c. A victim exposed generally causes no risk unless the source is nearby and emitting the radiation.
c. Lead is an effective shield against gamma radiation.


scienceeasy

  • Member
  • Posts: 565
Reply 2 on: Jul 3, 2018
Gracias!

Perkypinki

  • Member
  • Posts: 339
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

Allergies play a major part in the health of children. The most prevalent childhood allergies are milk, egg, soy, wheat, peanuts, tree nuts, and seafood.

Did you know?

Once thought to have neurofibromatosis, Joseph Merrick (also known as "the elephant man") is now, in retrospect, thought by clinical experts to have had Proteus syndrome. This endocrine disease causes continued and abnormal growth of the bones, muscles, skin, and so on and can become completely debilitating with severe deformities occurring anywhere on the body.

Did you know?

The use of salicylates dates back 2,500 years to Hippocrates's recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.

Did you know?

To maintain good kidney function, you should drink at least 3 quarts of water daily. Water dilutes urine and helps prevent concentrations of salts and minerals that can lead to kidney stone formation. Chronic dehydration is a major contributor to the development of kidney stones.

Did you know?

Though newer “smart” infusion pumps are increasingly becoming more sophisticated, they cannot prevent all programming and administration errors. Health care professionals that use smart infusion pumps must still practice the rights of medication administration and have other professionals double-check all high-risk infusions.

Heart Flow Heart Flow
Formation of primary and secondary lysosomes and their role in cellular digestive Formation of primary and secondary lysosomes and their role in cellular digestive
The Nature of Environmental Science: A fireman battles with a forest fire The Nature of Environmental Science: A fireman battles with a forest fire
Location of fetal heart tones for various fetal positions Location of fetal heart tones for various fetal positions
Layers of the heart Layers of the heart
Primary motor area of cerebral cortex Primary motor area of cerebral cortex
Video: Mechanism of enzyme action

For a complete list of videos, visit our video library