Krypton-81m Whole-body scan for tumors Mode of Decay Isotope Half-life Use in Medical Imaging B+, y B+, y Carbon-11 Brain scan to trace glucose metabolism Brain scan to trace glucose metabolism Detect eye tumors Diagnose albinism, image the spleen and gastrointestinal tract Bone marrow function, diagnose anemias 20.3 m 18F Fluorine-18 109 m 14.3 d 27.7 d 44.5 d 78.3 h 118 d P Phosphorus-32 Chromium-51 E.C., y 2Fe SGa Se Kr Sr Iron-59 Gallium-67 B, y E.C., Y E.C., Y Gamum-o Selenium-75 13.3 s 22.2 m 6.01 h 8.04 d 64.1 h 3.05 d Pancreas scan Lung ventilation scan Scan for bone diseases, including cancer Brain, liver, kidney, bone scans; diagnosis of damaged heart muscle Diagnosis of thyroid malfunction Kidney scan Heart scan and exercise stress test Strontium-81 Technetium-99m 191 1Hg Iodine-131 Мercury-197 Thallium-201 В, у E.C., y E.C., y The radioactive isotope strontium-81 is used in medical imaging as indicated on the table above. If 51.1l milligrams of strontium-81 is administered to a patient, how many milligrams are left in the body after 44.4 minutes?

Chemistry
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Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Chapter1: Chemical Foundations
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Some Radioactive Isotopes Useful in Medical Imaging
Mode of
Decay
Isotope
Half-life
Use in Medical Imaging
B+, y
B+, y
Carbon-11
Fluorine-18
Phosphorus-32
Chromium-51
Brain scan to trace glucose metabolism
Brain scan to trace glucose metabolism
Detect eye tumors
Diagnose albinism, image the spleen and gastrointestinal tract
20.3 m
EF
109 m
14.3 d
27.7 d
44.5 d
Cr
Fe
SiGa
E.C., Y
В, у
E.C., Y
E.C., Y
Iron-59
Bone marrow function, diagmose anemias
78.3 h
118 d
Whole-body :
scan for tumors
Pancreas scan
Lung ventilation scan
Scan for bone diseases, including cancer
Brain, liver, kidney, bone scans; diagnosis of damaged heart muscle
Diagnosis of thyroid malfunction
Kidney scan
Heart scan and exercise stress test
118 d
13.3 s
Strontium-81
22.2 m
Technetium-99m
6.01 h
8.04 d
Iodine-131
B, y
1Hg
201TI
Mercury-197
Thallium-201
E.C., Y
64.1 h
E.C., y
3.05 d
The radioactive isotope strontium-81 is used in medical imaging as indicated on the table above. If 51.l milligrams of strontium-81 is administered to a patient, how
many milligrams are left in the body after 44.4 minutes?
mg
Transcribed Image Text:Some Radioactive Isotopes Useful in Medical Imaging Mode of Decay Isotope Half-life Use in Medical Imaging B+, y B+, y Carbon-11 Fluorine-18 Phosphorus-32 Chromium-51 Brain scan to trace glucose metabolism Brain scan to trace glucose metabolism Detect eye tumors Diagnose albinism, image the spleen and gastrointestinal tract 20.3 m EF 109 m 14.3 d 27.7 d 44.5 d Cr Fe SiGa E.C., Y В, у E.C., Y E.C., Y Iron-59 Bone marrow function, diagmose anemias 78.3 h 118 d Whole-body : scan for tumors Pancreas scan Lung ventilation scan Scan for bone diseases, including cancer Brain, liver, kidney, bone scans; diagnosis of damaged heart muscle Diagnosis of thyroid malfunction Kidney scan Heart scan and exercise stress test 118 d 13.3 s Strontium-81 22.2 m Technetium-99m 6.01 h 8.04 d Iodine-131 B, y 1Hg 201TI Mercury-197 Thallium-201 E.C., Y 64.1 h E.C., y 3.05 d The radioactive isotope strontium-81 is used in medical imaging as indicated on the table above. If 51.l milligrams of strontium-81 is administered to a patient, how many milligrams are left in the body after 44.4 minutes? mg
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