As part of her nuclear stress test, Simone starts to walk on the treadmill. When she reaches the maximum level, Paul inj

[answerhappygod]

As Part Of Her Nuclear Stress Test Simone Starts To Walk On The Treadmill When She Reaches The Maximum Level Paul Inj 1 (32.49 KiB) Viewed 68 times

As part of her nuclear stress test, Simone starts to walk on the treadmill. When she reaches the maximum level, Paul injects a radioactive dye with 201T1 with an activity of 68 MBq. The radiation emitted from areas of her heart is detected by a scanner and produces images of her heart muscle. After Simone rests for 3 h, Paul injects more dye with 201 TI and she is placed under the scanner again. A second set of images of her heart muscle at rest is taken. The radioactive dye passes through the kidneys as it is filtered out of the body and eliminated after the medical testing is complete. You may want to reference (Page) Section 5.6 while completing this problem. ▼ Part A Radiation from 201Tl to Simone's kidneys can be 18 mGy. What is this amount of radiation in rad? Express the radiation to two significant figures and include the appropriate units. μÅ ? Value Units Submit < Return to Assignment Request Answer Provide Feedback

Xenon-133 is used to test lung function; it decays by emitting a beta particle. Part A Write an equation for the beta decay of Xe-133. Express your answer as a chemical equation. I = ΑΣΦ 133 53 I A chemical reaction does not occur for this question. Submit Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remaining Part B If the half-life of Xe-133 is 5.2 h, how much of a 40.-mCi sample is still active after 15.8 h? Express your answer in millicuries to two significant figures. ΠΙΑΣΦ mCi Request Answer Submit Provide Feedback

The unit rem (roentgen equivalent for man) is the product of the radiation dose in rads and the relative biological effectiveness (RBE) of radiation. The SI unit for effective dosage is the sievert (Sv) and 1 Sv = 100 rem. The table shown here describes the biological effects of short-term radiation on humans. Intensity (rem) Biological effects 0-25 no detectable effects 25-100 temporary decrease in white blood cell count 100-200 nausea, vomiting, longer-term decrease in white blood cells 200-300 vomiting, diarrhea, loss of appetite, listlessness 300-600 vomiting, diarrhea, hemorrhaging, eventual death in some cases above 600 eventual death in nearly all cases The intensity of radiation increases as you move closer to the radiation source according to the equation -42 1₂ where di and d₂ are the initial and final distances and I₁ and I are the initial and final intensities. Part A At a distance of 40 ft, an ionizing radiation source delivers 5.5 rem of radiation. How close could you get to the source and still have no biological effects? Express your answer to two significant figures and include the appropriate units. ▸ View Available Hint(s) μà ^ w ? Value Units ▼ Part B A nurse administered 2.00 mL of a radioisotope solution that has an activity of 155 μCi/mL. What total dose of the radioisotope did the patient receive? Express your answer to three significant figures and include the appropriate units. ▸ View Available Hint(s) UÅ 6 ? Value Units Submit Submit Provide Feedback =