Lab # 3 Cervix

Question 1

Treatment to the pelvic area is mostly intended for

_______ purposes

Answer 1

curative

Question 2

The________ has decreased the need for radiation treatment to the pelvis for invasive carcinoma, and surgical procedures can be used for early stage cervical cancers

Answer 2

Papanicolaou (PAP) smear

Question 3

Cancer of the cervix is the _ ____most common malignancy in women worldwide.

Answer 3

third

Question 4

_________ has been identified as a major risk factor for cervical cancer.

Answer 4

Chronic Human PapillomaVirus infection (HPV

Question 5

Treatment of invasive carcinoma of the cervix can be treated with ________________ as well as ______________.

Answer 5

external beam radiotherapy

internal brachytherapy.

Question 6

the uterus is _______ to the bladder

Answer 6

posterior

Question 7

the uterus is ______ to the rectum

Answer 7

anterior

Question 8

what are the three parts of the unterus?

Answer 8

fundus superior, corpus body, and cervix interior

Question 9

what is the most common pathology of cervical cancer?

Answer 9

squamous cell carcinoma

Question 10

The three most commonly involved group of nodes include the following:

Answer 10

obturator, internal iliac, and external iliac

Question 11

The obturator nodes are part of the ___________

Answer 11

external iliac chain

Question 12

the obturator nodes can be found where?

Answer 12

against the pelvic wall slightly superior to the acetabulum

Question 13

When radiation treatment fields are designed, the _________ and _____________ must be included.

Answer 13

known disease and potential sites of lymphatic spread

Question 14

The bladder can be localized with a contrast material called ________ administered by placing a foley catheter in the bladder via the urethra.

Answer 14

Cystografin

Question 15

The small bowel can be localized with a contrast material called

Answer 15

Gastrografin.

Question 16

The rectum can be localized with a rectal tube containing _____ or _________

Answer 16

barium or a radiopaque rectal marker.

Question 17

The vagina can be localized with a ___________ or _____________.

Answer 17

radiopaque vaginal marker or a tampon dipped in Cystographin.

Question 18

If the patient received previous brachytherapy, the vagina must be ______ during the external beam portion of radiation treatment.

Answer 18

blocked

Question 19

what are the critical structures when treating the pelvis?

Answer 19

bladder
rectum
femoral heads
bone marrow
small bowel 
colon

Question 20

what is the prescription for treating the cervix?

Answer 20

180 cGy/fx x 25 fx = 4500cGy

Question 21

what is the TD 5/5 for the bladder?

Answer 21

6,500 cGy

Question 22

what is the TD 5/5 for the rectum?

Answer 22

6,000 cGy

Question 23

what is the TD 5/5 for the femoral heads?

Answer 23

5,200 cGy

Question 24

what is the TD 5/5 for bone marrow?

Answer 24

2,500 cGy

Question 25

what is the TD 5/5 for the small bowel?

Answer 25

4,000 cGy

Question 26

what is the TD 5/5 for the colon?

Answer 26

4,500 cGy

Question 27

what is the machine engery for treating the cervix?

Answer 27

10 MV

Question 28

what is the treatment depth when treating cervix?

Answer 28

midplane