核医学 知到智慧树答案2024 z40976

第一章 单元测试

1、单选题：
What is the relationship between 123I and 124I?( )

A:Element
B:Nuclide
C:Isotope
D:Isomer
答案: Isotope

2、判断题：
A nuclide has the same N , Z and energy state .（ ）

A:错
B:对
答案: 对

3、判断题：
WhenTc m decay into Tc, the mass is changed. （ ）

A:对
B:错
答案: 错

4、判断题：
Atomic nuclei are spontaneously affected by external influences ，such as temperature, pressure, electromagnetic fields.( )

A:错
B:对
答案: 错

5、单选题：
Which is true for Gamma decay?( )

A:99mTc decays into 99Tc is a type of gamma decay.
B:The mass number is not changed.
C:It is a type of electromagnetic radiation.
D:The atomic number is changed.
答案: The atomic number is changed.

第二章 单元测试

1、单选题：
What part of an imaging system emits light when it has absorbed a photon?（ ）

A:pulse height analyzer
B:photomultiplier tube
C:scintillation crystal
D:Collimator
答案: scintillation crystal

2、单选题：
What happens to image size as the distance between a patient and a parallel hole collimator decreases? （ ）

A:does not change
B:worsens
C:improves
答案: does not change

3、单选题：
The images acquired as a SPECT camera rotates arounda patient are called: （ ）

A:arcs
B:projections
C:azimuth stops
D:reconstructions
答案: projections

4、单选题：
Most of the photons emitted from the radiopharmaceutical which has been administered to a patient: （ ）

A:a and b
B:do not contribute to the final image
C:are received by the sodium iodide crystal
D:b and c
E:are converted to a voltage signal
答案: do not contribute to the final image

5、单选题：
A technologist covers the collimator (which is facing the ceiling) with absorbent paper and obtains a uniformity image using a liquid flood source with added 99mTc.A round cold spot is seen on the image. Subsequently the technologist removes the collimator, turns the camera face down and obtains another image using a point source placed on the floor. This image appears uniform.What is the most likely cause of the cold spot on the first image? （ ）

A:decoupled photomultiplier tube
B:subtle crystal crack
C:collimator defect
D:improper energy peaking
答案: decoupled photomultiplier tube

第三章 单元测试

1、判断题：
Most radionuclides used in PET scanning are Cyclotron-produced,such as 18F and 11C.( )

A:错
B:对
答案: 对

2、单选题：
What is T1/2 of 99Mo?( )

A:66d
B:6.6h
C:6.6d
D:66h
答案: 66h

3、单选题：
What is energy of 99mTc?( )

A:140Mev
B:140Kev
C:511Kev
D:364Kev
答案: 140Kev

4、判断题：
99mTc is the most commonly used for PET imaging.( )

A:错
B:对
答案: 错

5、判断题：
131 I is by-product of the fission of 235 U.( )

A:对
B:错
答案: 对

第四章 单元测试

1、单选题：
Which of the following is not a free radical produced by water ionization?( )

A:H2O
B:H
C:OH
D:H2O2
答案: H2O

2、判断题：
Direct radioation effect results from a direct physical energy exchange between the ionizing photon and the affected molecule.( ）

A:错
B:对
答案: 对

3、判断题：
Beta particles has stronger biological effects during internal irradiation than alfa rays.（ ）

A:错
B:对
答案: 错

4、单选题：
which is high sensitivity tissue except( )

A:the Lymphoid tissue
B:the gastrointestinal tract
C:the red marrow
D:the skeleton
答案: the skeleton

5、判断题：
We are receiving radiation every day.( )

A:错
B:对
答案: 对

第五章 单元测试

1、单选题：
The blood- brain barrier is: （ ）

A:composed of four cell layers
B:visible on all brain images
C:responsible for active tumor growth
D:an anatomic and physiological concept
答案: an anatomic and physiological concept

2、单选题：
Which of the following radiopharmaceuticals is NOT based on detecting a compromised blood-brain barrier?（ ）

A:201 TI
B:99mTc pertechnatate
C:99mTc GH
D:99mTc DTPA
E:99mTc HMPAO
答案: 99mTc HMPAO

3、单选题：
Indications for SPECT perfusion imaging include all of the following EXCEPT: （ ）

A:evaluation of head trauma
B:evaluation of cerebrovascular diseases
C:localization of seizure foci
D:pituitary microadenoma
答案: pituitary microadenoma

4、单选题：
Which dose could be used for 99mTc ECD or 99mTc HMPAO for SPECT brain imaging? （ ）

A:20 mCi
B:2–5 mCi
C:7–10 mCi
D:5–7 mCi
答案: 20 mCi

5、单选题：
5 The images obtained with a PET study using 18FDG can best be described as: （ ）

A:Dynamic
B:perfusion
C:anatomical
D:metabolic
答案: metabolic

第六章 单元测试

1、单选题：
What is the radiopharmaceutical of RAIU?( )

A:18F
B:99mTc
C:131I
D:125I
答案: 131I

2、单选题：
Which is not true for RAIU?( )

A:No levothyroxine therapy within 4-6 weeks.
B:No breakfast on the fist day of the stuys.
C:No need to ban iodine diet.
D:No antithyroid drugs for 1 to 2 week.
答案: No need to ban iodine diet.

3、判断题：
The rate of taking 131I during the recovery period of thyroiditis can be normal or increased.( )

A:对
B:错
答案: 对

4、单选题：
Which is not true for acute thyroiditis?( )

A:It is believed to be a viral infection.
B:RAIU is increase.
C:It is divided into four stages.
D:The patient is in a state of thyrotoxicosis.
答案: RAIU is increase.

5、单选题：
Parathyroid imaging examination does not include（ ）

A:CT
B:X-ray
C:Ultrasound
D:SPECT
答案: X-ray

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