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 58 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
:D TYSM

shewald78

  • Member
  • Posts: 340
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

Cocaine was isolated in 1860 and first used as a local anesthetic in 1884. Its first clinical use was by Sigmund Freud to wean a patient from morphine addiction. The fictional character Sherlock Holmes was supposed to be addicted to cocaine by injection.

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?

Fatal fungal infections may be able to resist newer antifungal drugs. Globally, fungal infections are often fatal due to the lack of access to multiple antifungals, which may be required to be utilized in combination. Single antifungals may not be enough to stop a fungal infection from causing the death of a patient.

Did you know?

ACTH levels are normally highest in the early morning (between 6 and 8 A.M.) and lowest in the evening (between 6 and 11 P.M.). Therefore, a doctor who suspects abnormal levels looks for low ACTH in the morning and high ACTH in the evening.

Did you know?

Warfarin was developed as a consequence of the study of a strange bleeding disorder that suddenly occurred in cattle on the northern prairies of the United States in the early 1900s.

Anatomy of Heart Anatomy of Heart
Primary rainbows are the brightest and most common. Primary rainbows are the brightest and most common.
Conduction system of the heart Conduction system of the heart
A Change of Heart A Change of Heart
Electrical Conduction System of the Heart Electrical Conduction System of the Heart
In oogenesis, cells enter meiosis as primary oocytes In oogenesis, cells enter meiosis as primary oocytes
Video: Splitting of Sugar, Oxidation/ Reduction & ATP Generation

For a complete list of videos, visit our video library