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

Author Question: Fluorine-18 undergoes positron emission with a half-life of 1.10 102 minutes. If a patient is given ... (Read 31 times)

tichca

  • Hero Member
  • *****
  • Posts: 554
on: Nov 18, 2019

Question 1

Give the maximum age that can be estimated from radiocarbon dating.
◦ 1 000 000 years
◦ 100 000 years
◦ 5000 years
◦ 50 000 years
◦ 10 000 years

Question 2

Fluorine-18 undergoes positron emission with a half-life of 1.10 × 102 minutes. If a patient is given a 248 mg dose for a PET scan, how long will it take for the amount of fluorine-18 to drop to 83 mg? (Assume that none of the fluorine is excreted from the body.)
◦ 3.0 × 102 minutes
◦ 1.7 × 102 minutes
◦ 1.3 × 102 minutes
◦ 99 minutes
◦ 2.1 × 102 minutes
Chemistry: A Molecular Approach (Canadian) ¦ Tro, Fridgen, Shaw ¦ 2nd Edition
Buy Test-Bank


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by tichca on Nov 18, 2019

aburgess

  • Sr. Member
  • ****
  • Posts: 361
Reply #1 on: Nov 18, 2019
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
Answer Preview
Only 49% of students answer this correctly


tichca

  • Member
  • Posts: 554
Reply 2 on: Nov 18, 2019
Wow, this really help

duy1981999

  • Member
  • Posts: 341
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

Side effects from substance abuse include nausea, dehydration, reduced productivitiy, and dependence. Though these effects usually worsen over time, the constant need for the substance often overcomes rational thinking.

Did you know?

Asthma cases in Americans are about 75% higher today than they were in 1980.

Did you know?

Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.

Did you know?

Your skin wrinkles if you stay in the bathtub a long time because the outermost layer of skin (which consists of dead keratin) swells when it absorbs water. It is tightly attached to the skin below it, so it compensates for the increased area by wrinkling. This happens to the hands and feet because they have the thickest layer of dead keratin cells.

Did you know?

HIV testing reach is still limited. An estimated 40% of people with HIV (more than 14 million) remain undiagnosed and do not know their infection status.

Patient Teaching Methods Cont. Patient Teaching Methods Cont.
The medical assistant will provide patient education regarding the daily use of diabetic glucose ... The medical assistant will provide patient education regarding the daily use of diabetic glucose ...
A physical therapist exercising the patient’s leg in a physical therapy department. A physical therapist exercising the patient’s leg in a physical therapy department.
Kaposi's sarcoma on the skin of an AIDS patient. Kaposi's sarcoma on the skin of an AIDS patient.
Prepare for weekend plans when hours feel like minutes Prepare for weekend plans when hours feel like minutes
Half-life formula Half-life formula
Video: Types of antimicrobial substances (interferons & complement protein)

For a complete list of videos, visit our video library