NMTCB Practice Exam V1
1. a Mo/Tc generator has an elution efficiency of 89%. if 1.1 Ci of Tc is presenton the column,
what is the estimated activity of eluate that will be obtained?
a. 97.9 Ci
b. 979 mCi
c. 979 uCi
d. 97.9 mCi: b. 979 mCi
2. Tc DPTA has be used for all of the following, EXCEPT:
a. aerosol lung scanning
b. renal flow study
c. brain flow study
d. shunt patency
e. spleen scanning: E. spleen scanning
3. which of the following is not used as an anticoagulant?
a. heparin
b. EDTA
c. ascorbic acid
d. ACD solution: c. ascorbic acid
4. if the concentration of a solution desired is 2 mCi/ml and the 325 mCi of solute is
contained in a volume of 2.5 ml, how much water should be added tocreate the solution?
a. 160 ml
b. 162.5 ml
c. 650 ml
d. 125 ml: b. 162.5 ml
(Books says this, but pretty sure it's A-160 ml2 mCi/ml = 325 mCi/x,
x= 162.5, but you already have 2.5 mL, so 162.5-2.5=160
,5. the inferior wall of the heart is supplied by the:
a. LAD
b. LCX
c. RCA
d. LCA: c. RCA
6. the uptake of FDG by tumors is based on:
a. a blood brain barrier breakdown (say that 5x)
b. the higher glycolytic rate of tumors relative to normal tissue
c. active transport
d. Antibody antigen reactions
e. receptor binding: b. the higher glycolytic rate of tumors relative to normal tissue
7. In111 delivers a lower radiation dose to the patient than Ga67 because itonly has one
gamma emission, whereas Ga67 has four.
a. true
b. false: B. false
8. if dipyridamole is supplied in a 50ml vial containing 250 mg and a patientweighs 205 lb,
how much volume will be needed from the vial to prepare hisdose of 0.56 mg/kg?
a. 5.6
b. 10.4
c. 15.9
d. 22.6: b. 10.4
0.56 mg/kg x 93.2 kg= 52.2 mg / 5 mg/ml = 10.4 ml
9. if 450 mCi of TcO4 eluted from a generator contains 200 uCi Mo99, is theeluate within
the standards of radionuclidic purity set forth by the NRC?
a. yes
b. no
, c. the NRC does not regulate radionuclidic purity
d. it cannot be determined with the information
e. this is an example of radiochemical impurity rather than radionuclidicimpurity: b. no
10. In which RP is Tc99m left in the valence state of +7
a. sulfur colloid
b. MAA
c. MAG3
d. sestamibi: A. Sulfur colloid
11. a tech receives a request for a patient to receive Sm153 for palliation of pain from bone
mets. the patient has a WBC count of 3500 and 40000 platelets. whatshould happen next?
a. the order should be changed to Sr89
b. the tx should be delayed until the platelet ct is at least 60,000
c. the tx should be delayed until the WBC is below 2400
d. the Sm153 should be ordered: B. the tx should be delayed until the platelet ct is at least
60,000
12. a SC kit requires the addition of 1-3 ml containing no more than 500mCi of TcO4-. in
addition, 1.5 ml of solution A must be added before boiling, and 1.5 ml of Solution B must be
added after cooling. If the kit is correctly prepared, what is the max concentration of Tc99m it
could contain?
a. 83 mCi/ml
b. 125 mCi/ml
c. 167 mCi/ml
d. 500 mCi/ml: B. 125 mCi/ml
max. 1 ml TcO4- containing 500 mCi500/(1.5+1.5+1) = 125 mCi/ml
13. A hine-duley phantom is useful for testing the spatial resolution and spatiallinearity with
only one image.
a. true
b. false: B. false
14. the advantage of a lung ventilation scan performed with Xenon is
a. the ability to match perfusion and vent positioning
b. the ability to detect delayed washout
1. a Mo/Tc generator has an elution efficiency of 89%. if 1.1 Ci of Tc is presenton the column,
what is the estimated activity of eluate that will be obtained?
a. 97.9 Ci
b. 979 mCi
c. 979 uCi
d. 97.9 mCi: b. 979 mCi
2. Tc DPTA has be used for all of the following, EXCEPT:
a. aerosol lung scanning
b. renal flow study
c. brain flow study
d. shunt patency
e. spleen scanning: E. spleen scanning
3. which of the following is not used as an anticoagulant?
a. heparin
b. EDTA
c. ascorbic acid
d. ACD solution: c. ascorbic acid
4. if the concentration of a solution desired is 2 mCi/ml and the 325 mCi of solute is
contained in a volume of 2.5 ml, how much water should be added tocreate the solution?
a. 160 ml
b. 162.5 ml
c. 650 ml
d. 125 ml: b. 162.5 ml
(Books says this, but pretty sure it's A-160 ml2 mCi/ml = 325 mCi/x,
x= 162.5, but you already have 2.5 mL, so 162.5-2.5=160
,5. the inferior wall of the heart is supplied by the:
a. LAD
b. LCX
c. RCA
d. LCA: c. RCA
6. the uptake of FDG by tumors is based on:
a. a blood brain barrier breakdown (say that 5x)
b. the higher glycolytic rate of tumors relative to normal tissue
c. active transport
d. Antibody antigen reactions
e. receptor binding: b. the higher glycolytic rate of tumors relative to normal tissue
7. In111 delivers a lower radiation dose to the patient than Ga67 because itonly has one
gamma emission, whereas Ga67 has four.
a. true
b. false: B. false
8. if dipyridamole is supplied in a 50ml vial containing 250 mg and a patientweighs 205 lb,
how much volume will be needed from the vial to prepare hisdose of 0.56 mg/kg?
a. 5.6
b. 10.4
c. 15.9
d. 22.6: b. 10.4
0.56 mg/kg x 93.2 kg= 52.2 mg / 5 mg/ml = 10.4 ml
9. if 450 mCi of TcO4 eluted from a generator contains 200 uCi Mo99, is theeluate within
the standards of radionuclidic purity set forth by the NRC?
a. yes
b. no
, c. the NRC does not regulate radionuclidic purity
d. it cannot be determined with the information
e. this is an example of radiochemical impurity rather than radionuclidicimpurity: b. no
10. In which RP is Tc99m left in the valence state of +7
a. sulfur colloid
b. MAA
c. MAG3
d. sestamibi: A. Sulfur colloid
11. a tech receives a request for a patient to receive Sm153 for palliation of pain from bone
mets. the patient has a WBC count of 3500 and 40000 platelets. whatshould happen next?
a. the order should be changed to Sr89
b. the tx should be delayed until the platelet ct is at least 60,000
c. the tx should be delayed until the WBC is below 2400
d. the Sm153 should be ordered: B. the tx should be delayed until the platelet ct is at least
60,000
12. a SC kit requires the addition of 1-3 ml containing no more than 500mCi of TcO4-. in
addition, 1.5 ml of solution A must be added before boiling, and 1.5 ml of Solution B must be
added after cooling. If the kit is correctly prepared, what is the max concentration of Tc99m it
could contain?
a. 83 mCi/ml
b. 125 mCi/ml
c. 167 mCi/ml
d. 500 mCi/ml: B. 125 mCi/ml
max. 1 ml TcO4- containing 500 mCi500/(1.5+1.5+1) = 125 mCi/ml
13. A hine-duley phantom is useful for testing the spatial resolution and spatiallinearity with
only one image.
a. true
b. false: B. false
14. the advantage of a lung ventilation scan performed with Xenon is
a. the ability to match perfusion and vent positioning
b. the ability to detect delayed washout
