Radiopharmaceuticals MCQs

We have provided 50 MCQs on Radiopharmaceuticals, Unit-5, 1st semester, PHARMACEUTICAL INORGANIC CHEMISTRY, B. Pharm.

We have covered following topics.

Radiopharmaceuticals: Radio activity, Measurement of radioactivity, Properties of α, β, γ radiations, Half-life, radio isotopes and study of radio isotopes – Sodium iodide I131, Storage conditions, precautions & pharmaceutical application of radioactive substances.

MCQ on Radiopharmaceuticals

  1. Which of the following is NOT a type of radioactive decay?
    • Alpha decay
    • Beta decay
    • Gamma decay
    • Delta decay

Answer: Delta decay


  1. What is the unit of radioactivity?
    • Curie
    • Becquerel
    • Gray
    • Sievert

Answer: Becquerel


  1. Which of the following is the most penetrating type of radiation?
    • Alpha particles
    • Beta particles
    • Gamma rays
    • Neutrons

Answer: Gamma rays


  1. What instrument is used to measure the radioactivity of a sample?
    • Geiger counter
    • Scintillation counter
    • Well counter
    • All of the above

Answer: All of the above


  1. What is the background count?
    • The count rate of a blank sample
    • The count rate of a standard sample
    • The count rate of the instrument itself
    • Any of the above

Answer: Any of the above


  1. Alpha particles are composed of two protons and two neutrons.
    • True
    • False

Answer: True


  1. Beta particles are electrons.
    • True
    • False

Answer: True


  1. Gamma rays are high-energy photons.
    • True
    • False

Answer: True


  1. What is the half-life of a radioactive nuclide?
    • The time it takes for half of the nuclides in a sample to decay
    • The time it takes for all of the nuclides in a sample to decay
    • The time it takes for the activity of a sample to halve
    • Any of the above

Answer: Any of the above


  1. What is the formula for calculating the half-life of a radioactive nuclide?
    • t_1/2 = ln(2)/λ
    • t_1/2 = ln(1/2)/λ
    • t_1/2 = λ/ln(2)
    • t_1/2 = λ/ln(1/2)

Answer: t_1/2 = ln(2)/λ


  1. What is a radioisotope?
    • An isotope that is radioactive
    • An isotope that is stable
    • An isotope that has a different number of protons than neutrons
    • An isotope that has a different number of neutrons than protons

Answer: An isotope that is radioactive


  1. What is the most common radioisotope used in nuclear medicine?
    • Technetium-99m
    • Iodine-131
    • Fluorine-18
    • Carbon-11

Answer: Technetium-99m


  1. What is the name of the process by which a radioisotope decays to form a different radioisotope?
    • Radioactive decay
    • Nuclear fission
    • Nuclear fusion
    • Chain reaction

Answer: Radioactive decay


  1. What is the name of the process by which a radioisotope is produced by bombarding a stable isotope with neutrons?
    • Neutron activation
    • Nuclear fission
    • Nuclear fusion
    • Chain reaction

Answer: Neutron activation


  1. What is the half-life of sodium iodide I-131?
    • 8.04 days
    • 13.2 hours
    • 109.7 minutes
    • 20.4 minutes

Answer: 8.04 days


  1. What is the main route of excretion of sodium iodide I-131?
    • Urine
    • Feces
    • Sweat
    • Breast milk

Answer: Urine


  1. What is sodium iodide I-131 used to treat?
    • Hyperthyroidism
    • Thyroid cancer
    • Graves’ disease
    • All of the above

Answer: All of the above


  1. What are the storage conditions for radioactive substances?
    • In a cool, dark place
    • In a lead-lined container
    • Away from other radioactive substances
    • All of the above

Answer: All of the above


  1. What precautions should be taken when handling radioactive substances?
    • Avoid direct contact with the radioactive substance
    • Wash your hands thoroughly after handling the radioactive substance
    • All of the above

Answer: All of the above


  1. What is the pharmaceutical application of sodium iodide I-131?
    • Treatment of hyperthyroidism, thyroid cancer, and Graves’ disease
    • Diagnosis of thyroid disorders
    • Imaging of the thyroid gland
    • All of the above

Answer: All of the above


  1. What is the maximum permissible dose (MPD) of sodium iodide I-131 for adults?
    • 300 microcuries
    • 500 microcuries
    • 1 millicurie
    • 2 millicuries

Answer: 300 microcuries


  1. What is the pharmaceutical application of technetium-99m?
    • Diagnosis of a wide range of diseases, including cancer, heart disease, and infections
    • Treatment of certain types of cancer, such as thyroid cancer and leukemia
    • Imaging of the brain, heart, lungs, and other organs
    • All of the above

Answer: All of the above


  1. What is the half-life of technetium-99m?
    • 6 hours
    • 8 hours
    • 12 hours
    • 24 hours

Answer: 6 hours


  1. What are the storage conditions for technetium-99m?
    • In a lead-lined container
    • At room temperature
    • Away from other radioactive substances
    • All of the above

Answer: All of the above


  1. What are the precautions that should be taken when handling technetium-99m?
    • Avoid direct contact with the radioactive substance
    • Wash your hands thoroughly after handling the radioactive substance
    • All of the above

Answer: All of the above


  1. What is the pharmaceutical application of fluorine-18?
    • Diagnosis of cancer and other diseases
    • Imaging of the brain, heart, and other organs
    • All of the above

Answer: All of the above


  1. What is the half-life of fluorine-18?
    • 109.7 minutes
    • 120 minutes
    • 130 minutes
    • 140 minutes

Answer: 109.7 minutes


  1. What are the storage conditions for fluorine-18?
    • In a lead-lined container
    • At room temperature
    • Away from other radioactive substances
    • All of the above

Answer: All of the above


  1. What are the precautions that should be taken when handling fluorine-18?
    • Avoid direct contact with the radioactive substance
    • Wash your hands thoroughly after handling the radioactive substance
    • All of the above

Answer: All of the above


  1. What is the pharmaceutical application of carbon-11?
    • Diagnosis of cancer and other diseases
    • Imaging of the brain, heart, and other organs
    • All of the above

Answer: All of the above


  1. What is the half-life of carbon-11?
    • 20.4 minutes
    • 30 minutes
    • 40 minutes
    • 50 minutes

Answer: 20.4 minutes


  1. What are the storage conditions for carbon-11?
    • In a lead-lined container
    • At room temperature
    • Away from other radioactive substances
    • All of the above

Answer: All of the above


  1. What are the precautions that should be taken when handling carbon-11?
    • Avoid direct contact with the radioactive substance
    • Wash your hands thoroughly after handling the radioactive substance
    • All of the above

Answer: All of the above


  1. What is the pharmaceutical application of gallium-67?
    • Diagnosis of cancer and other infections
    • Imaging of the brain, heart, and other organs
    • All of the above

Answer: All of the above


  1. What is the half-life of gallium-67?
    • 78.3 hours
    • 90 hours
    • 100 hours
    • 110 hours

Answer: 78.3 hours


  1. What are the storage conditions for gallium-67?
    • In a lead-lined container
    • At room temperature
    • Away from other radioactive substances
    • All of the above

Answer: All of the above


  1. What are the precautions that should be taken when handling gallium-67?
    • Avoid direct contact with the radioactive substance
    • Wash your hands thoroughly after handling the radioactive substance
    • All of the above

Answer: All of the above


  1. What is the pharmaceutical application of indium-111?
    • Diagnosis of cancer and other infections
    • Imaging of the white blood cells
    • All of the above

Answer: All of the above


  1. What is the half-life of indium-111?
    • 2.8 days
    • 3 days
    • 3.2 days
    • 3.4 days

Answer: 2.8 days


  1. What are the storage conditions for indium-111?
    • In a lead-lined container
    • At room temperature
    • Away from other radioactive substances
    • All of the above

Answer: All of the above


  1. What are the precautions that should be taken when handling indium-111?
    • Avoid direct contact with the radioactive substance
    • Wash your hands thoroughly after handling the radioactive substance
    • All of the above

Answer: All of the above


  1. What is the pharmaceutical application of thallium-201?
    • Diagnosis of heart disease and other cardiovascular disorders
    • Imaging of the heart
    • All of the above

Answer: All of the above


  1. What is the half-life of thallium-201?
    • 73 hours
    • 75 hours
    • 77 hours
    • 79 hours

Answer: 73 hours


  1. What are the storage conditions for thallium-201?
    • In a lead-lined container
    • At room temperature
    • Away from other radioactive substances
    • All of the above

Answer: All of the above


  1. Is it safe to use radiopharmaceuticals during pregnancy?
    • No, it is not safe to use radiopharmaceuticals during pregnancy, as they can expose the fetus to radiation.
    • Yes, it is safe to use radiopharmaceuticals during pregnancy, as long as the benefits outweigh the risks.
    • It depends on the specific radiopharmaceutical and the stage of pregnancy.

Answer: It depends on the specific radiopharmaceutical and the stage of pregnancy.


  1. Is it safe to use radiopharmaceuticals during lactation?
    • No, it is not safe to use radiopharmaceuticals during lactation, as they can be excreted in breast milk and expose the nursing infant to radiation.
    • Yes, it is safe to use radiopharmaceuticals during lactation, as long as the benefits outweigh the risks.
    • It depends on the specific radiopharmaceutical and the nursing infant’s age.

Answer: It depends on the specific radiopharmaceutical and the nursing infant’s age.

More MCQs

PHARMACEUTICAL INORGANIC CHEMISTRY

Leave a Comment