Sodium 24 has a half-life of 15 hours and it is used in medicine to estimate:
Correct answer: B. Plasma Blood Volume
- A. Kidney Function
- B. Plasma Blood Volume
- C. Iron in Plasma
- D. Thyroid Function
Explanation
The sodium-24 isotope is used to study the circulation of blood. Sodium-24 (Na-24) IS commonly used in medicine for estimating plasma blood volume.
This question appeared on the UHS MDCAT 2015 paper, which you can sit online with every answer explained.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Biological and Medical Uses of Radiation
Radiation in medicine includes X-rays and gamma rays for imaging, radioactive tracers for diagnosis, and controlled radiation for destroying cancerous tissue. The topic also covers CT scans, PET imaging, radiotherapy, sterilisation, half-life and dosage, alongside biological damage, shielding and the need to balance diagnostic or therapeutic benefit against exposure.
Practise Nuclear Physics
1,257 free Nuclear Physics MCQs from Physics, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Physics questions like this
Physics is on 16 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Biological and Medical Uses of Radiation questions
Radiation can cause:
Which of the following is used to estimate the circulation of blood in a patient?
Which one of the following isotopes of Iodine is used for the treatment of thyroid cancer?
The half-life of sodium-24 is _ which is used to estimate the volume of blood in a patient.
Which radiation is used in greenhoue effect?
X-rays are used to measure: