100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
Previously searched by you
Previously searched by you
logo
NMTCB BOARD PREP QUESTIONS AND ANSWERS 100% CORRECT $16.99
Add to cart
Quickly navigate to
Preview
  2.  
  3. NMTCB RS
  4.  
  5. NMTCB RS

Exam (elaborations)

NMTCB BOARD PREP QUESTIONS AND ANSWERS 100% CORRECT
 0 purchase
  • Course
  • NMTCB RS
  • Institution
  • NMTCB RS

NMTCB BOARD PREP QUESTIONS AND ANSWERS 100% CORRECT NMTCB BOARD PREP QUESTIONS AND ANSWERS 100% CORRECT NMTCB BOARD PREP QUESTIONS AND ANSWERS 100% CORRECT Nuclides with the same atomic number ( the same number of protons) but a different number of neutrons are called: - ANSWER-isotopes T...

[Show more]

Preview 4 out of 35  pages

Document information

  • November 23, 2024
  • 35
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

Subjects

  • nmtcb board prep questions and answers 100 correc
  • nmtcb board prep questions and answers stuvia
  • nuclides with the same atomic number the same n

Written for

  • NMTCB RS
  • NMTCB RS

Seller

avatar-seller
NursingTutor1

Reviews received

Content preview

NMTCB BOARD PREP QUESTIONS AND
ANSWERS 100% CORRECT
Nuclides with the same atomic number ( the same number of protons) but a different
number of neutrons are called: - ANSWER-isotopes

Two nuclides with the same atomic mass but different atomic numbers are called: -
ANSWER-isobars

A nuclide that emits particulate or photon energy to achieve a more stable state: -
ANSWER-radionuclide

Another name for a helium ion containing two protons and two neutrons: - ANSWER-
alpha particle

What is a beta particle? - ANSWER-an electron

Why are alpha and beta particles not used for imaging? - ANSWER-They do not
efficiently exit the body, so they can not/ are hard to detect

What ratio of protons and neutrons favors beta decay? - ANSWER-A low proton-to-
neutron ratio, as compared with stable nuclei

What is the relationship between the mean energy and the maximum energy of a beta
spectrum? - ANSWER-The mean energy is about one-third of the max energy

What ratio of protons and neutrons favors positron decay? - ANSWER-A high proton-to-
neutron ratio

What two particles are emitted from the nucleus during beta decay? - ANSWER-A beta
particle and an antineutrino

Two nuclides with the same number of neutrons but different atomic numbers are
called: - ANSWER-Isotones

What particles are released from the nucleus during positron decay? - ANSWER-A
positron and a neutrino

What is the minimum amount of nuclear energy needed required for positron decay? -
ANSWER-1.02 MeV

What is the fate of a positron? - ANSWER-To travel a short distance, combine with an
electron, and be annihilated

,When a positron is annihilated via combination with an electron, the result is the
production of __________. - ANSWER-two nearly opposed 511-keV photons

What ratio of protons and neutrons favors electron capture decay? - ANSWER-A high
proton-to-neutron ratio

What particle is released from the nucleus during electron capture decay? - ANSWER-A
neutrino

What is released from the nucleus during isometric transition? - ANSWER-Gamma rays

Other than wavelength, frequency, and energy intensity, the fundamental difference
between x-rays and gamma rays is _______. - ANSWER-X-rays are produced from
energy released due to changes in the quantum levels/values of orbital electrons of an
atom, while gamma rays are produced from energy shifts within the nucleus

What are the components of a Mo99/Tc99m generator system? - ANSWER-Alumina
(Al203) column loaded with Mo99, an eluting solvent, an evacuated collecting vial, and
shielding

How is a Mo99/Tc99m generator system eluted? - ANSWER-Tc99m is removed by
passing saline through the column

Maximum buildup of Tc99m in a Mo99/Tc99m generator system occurs after ________
hours. - ANSWER-23

What does the term breakthrough mean when applied to a radionuclide generator
system? - ANSWER-A breakthrough occurs when some parent radionuclide elutes off
the column along with a daughter nuclide

What are the major emissions of Tc99m? - ANSWER-140 keV photons

By what method does Tc99m decay? - ANSWER-isomeric transition

When energy from a nuclear transition results in the emission of an orbital electron
rather than a gamma ray, this processes is called: - ANSWER-internal conversion

Internal conversion electrons increase the radiation dose to the patient because
____________. - ANSWER-energy from the electron is absorbed into the patients body

When energy from an orbital transition results in the emission of an orbital electron
rather than an x-ray, the electron is called ___________. - ANSWER-an Auger electron

What dose the term metastable mean? - ANSWER-When an isomeric state is long lived

,After an electron is ejected from an inner shell orbital, what occurs? - ANSWER-Outer
shell electrons release energy by moving to now unoccupied, less energetic inner
orbitals; the energy released by this transition is termed "characteristic of x-ray
radiation"

What are the two methods used to create synthetically radioactive materials? -
ANSWER-Radioactive materials are produced by bombarding a target material with
either ions or with neutrons

What is used to bombard elements with neutrons? - ANSWER-nuclear reactor

What is used to bombard elements with protons? - ANSWER-accelerator (linear or
cyclotron)

What are five cyclotron produced radionuclides? - ANSWER-In-111, I-123, Ga-67, F-18,
and Tl-201

What is a carrier-free radioisotope? - ANSWER-A radioisotope that does not contain
any nonradioactive species

What does the term activity mean? - ANSWER-The rate of disintegration of a
radionuclide

The unit of activity equivalent to 3.7 x 10^10 dps is called __________. - ANSWER-the
curie

What is a becquerel (Bq)? - ANSWER-The derived unit of radioactivity used by modern
metric system, the SI, is called the becquerel. The Bq is equal to one dps or 2.7027 x
10^-11 Ci.

A one-millicurie dose of a radiopharmaceutical is equal to how many becquerels? -
ANSWER-37 million (37 MBq)

What does the term specific activity mean? - ANSWER-The ratio of activity per unit
mass

What are some specific activities? - ANSWER-mCi/mg, mCi/mole, MBq/mg, or
MBq/mole

The time that it takes for a radionuclide to decay to one-half of its original activity is call
its __________ half-life. - ANSWER-physical

What is the relationship between the physical half-life and the decay constant? -
ANSWER-Their product equals 0.693

, The time that is required for a substance in the body to be reduced to half of its
concentration via biological excretion or metabolism is called its ____________ half-life.
- ANSWER-biological

Which type of half-life refers to the overall loss of radioactivity from the body due to
physical and biological decay? - ANSWER-effective half-life

What is the relationship between the effective half-life, biological half-life, and physical
half-life? - ANSWER-1/ physical half-life + 1/biological half-life = 1/effective half-life

A common type of transient equilibrium is a _______ generator. -
ANSWER-Mo99/Tc99m

When a daughter of a radionuclide has a half-life longer than that of the of the parent,
there is __________ equilibrium. - ANSWER-no

When a parent half-life is much longer than that of the daughter, there is ___________
equilibrium. - ANSWER-secular


What are the possible valence states of Tc99m? - ANSWER-eight oxidation states from
-1 to +7

What is the valence state and chemical form of Tc99m eluted from a generator? -
ANSWER-In pertechnetate, Tc is in the +7 oxidation state

Pertechnetate must first be __________ to a valence state of +4 prior to incorporation
into most chelates. - ANSWER-reduced

Reduction of technetium in commercial radiopharmaceutical kits is generally achieved
with ___________. - ANSWER-stannous ion

What is the single radiopharmaceutical in which technetium is not reduced from its +7
oxidation state - ANSWER-sulfur colloid

Where does intravenously administered Tc99m pertechnetate concentrate? - ANSWER-
In the stomach, salivary glands, thyroid, small and large bowel, choroid plexus, lactating
breasts, and kidneys

For lung perfusion scanning with Tc99m MAA, how many particles are typically
administered? - ANSWER-200,000 to 500,000

What is the mode of decay for I-123? - ANSWER-electron capture

What is the mode of decay for I -131? - ANSWER-beta emission

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

Guaranteed quality through customer reviews

Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.

Quick and easy check-out

Quick and easy check-out

You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.

Focus on what matters

Focus on what matters

Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!

Frequently asked questions

What do I get when I buy this document?

You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.

Satisfaction guarantee: how does it work?

Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.

Who am I buying these notes from?

Stuvia is a marketplace, so you are not buying this document from us, but from seller NursingTutor1. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for $16.99. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

69252 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy study notes for 15 years now

Start selling
$16.99
  • (0)
Add to cart
Added