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Infection, Tumor, Therapy Quiz

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Infection, Tumor, Therapy QuizVersion en ligne

Quiz we received in class

par Joshua Liberty
1

The mechanism of action for Cu-64 dotatate is : binds to various plasma protiens, including transferrin and lactoferrin.

2

Larger particles of Tc99m SC are generally recommended in lymphoscintigraphy as more frequent visualization of lymphatic channels is acheived.

3

With lymphoscintigraphy for melanoma, imaging begins immediately after injection and is repeated at 5 minute intervals for 45 to 60 minutes.

4

Usual dose of Ga-67 citrate is 1-3 mCi.

5

With Ga-67 citrate, the reason for delayed views is concentration in tissue is stable while blood clearence improves over time.

6

With In-111 Oxine labeled WBCs, early lung activity occurs, then clears out.

7

With In-111 Oxine labeled WBCs, uptake in liver and spleen is abnormal at 24 hours.

8

Leukocyte agents are nonspecific and alo localize in areas of inflammation, without infection.

9

Sestamibi breast imaging should be delayed 2 weeks following FNA and 4-6 weeks post core biopsy

10

The main disadvantage with In-111 Oxine WBC imaging is the tag to WBCs begins to breakdown leading to renal and GI excretion-this complicates GI infection localization.

11

A tech cannot find a vein on a In-111 WBC patient; he can try using a 25g needle to draw blood with no effect on the scan.

12

Tilmanocept is DTPA-mannosyl-dextran, a macromolecule with an average diameter of between 100 and 220 nm.

13

Lu-177 can be imaged with a gamma camera

14

The hypothetical first lymph node or group of nodes reached by metastasizing cancer cells from a tumor is called?

15

A condition in which lymphatic fluid accumulates in soft tissues and may lead to inflammation and obstruction is called?

16

A patient has bilateral breast disease; where should the sestamibi be injected?

17

Drawbacks of In-11 Oxine labeled WBCs include?

18

The MOL for sestamibi breast imaging is?

19

Ga-68 Dotatate recommended dose is?

20

Normal distribution of Ga-68 Dotatate is seen in the ?

21

Ga-68 Dotatate is indicated for use with?

22

Cu-64 Dotatate dose is?

23

Regarding Cu-64 dotatate preperation, for patients on long-acting somatostatin analogs,a washout period of _____ is recommended prior to imaging. For patients on short-acting somatostatin analogs, a washout period of ____ is recommended prior to imaging.

24

Lutetium Lu-177 dotatate recommended dose is _______?

25

Lymphoscintigraphy may use a Co-57 flood source; this is called a?

26

________ accumulates in lymphatic tissue and selectively binds to receptor ( CD206) located on the surface of macrophages and dendritic cells.

27

Before initating LUTATHERA: Discontinue long-acting somatostatin analogs (e.g., long-acting octreotide) for at least ______ weeks prior to initiating LUTATHERA. Administer short-acting octreotide as needed; discontinue at least ____ hours prior to inititating LUTATHERA.

28

Lu-177 Tp is?

29

If 10 mL of 0.5% stock solution are placed in a flask and diluted to 50 mL, what is the concentration of the new solution.

Feedback

5-10 mCi

Agents are non specific and also localize in areas of inflammation, without infection.

21g has to be used or bigger due to hemolyisis of the cells from teh small needle.

It is Tc99m SC particles with an average diameter of between 100 and 220 nm.

It has a gamma ray energy therefore can be imaged.

(10 mL)(0.5%) / 50 mL = 0.1%

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