RAD- ABDOMENCT

Question 1

What is the MC procedure for ABD patho?

Answer 1

CT

Question 2

If Mr. KFC has abdominal pain with recatal bleeds, which contrast is ideal to differntiate bowel from other abdomen issues?

Answer 2

PO contrast- Cons- takes HRs, NON EMergent. Look for hyperattenuation in bowel, stomach

Question 3

How can you tell if there is IV contrast?

Answer 3

Look at aorta an vessesl near verterbal body

Question 4

What are cues to look for in CT of abdomen?

Answer 4

1. Contrast or NON (enhanced) 2. Fat stranding 3. Fluid collection 4. Level of slice, use anatoamy 5. Creatine- NO PREGS. 6. Locate Aorta- size, califications, bifurcation, lumen contrast

Question 5

How long is CT of ABdomen

Answer 5

Base of LUNGS- FEMUR Heads

Question 6

What is only organ to cross midline?

Answer 6

Pancreas- RETROPERITINEAL

Question 7

What can be confusing w/ contrast vs. non?

Answer 7

Calification in organs will by hyperattenuation: pancreas, aorta, kidney

Question 8

For SBO or LBO, what preferred IV or PO contrast?

Answer 8

IV CON

Question 9

For diverticulitis, what preferred IV or PO contrast?

Answer 9

IV CON, +/- ORAL

Question 10

For IBD or Toxic megacolon what preferred IV or PO contrast?

Answer 10

Emergent- IV, NON emergent- PO

Question 11

For colon tumor in colon, what preferred IV or PO contrast?

Answer 11

Colonoscopy- CT w/ PO and IV

Question 12

What is most sensitve for site of SBO and cause?

Answer 12

CT 1. Dilated, Air- fluid bowel, Thick bowel walls.

Question 13

What is seen in stomach on CT?

Answer 13

Air

Question 14

With a LBO what is DX on CT?

Answer 14

1.Feces 2. Haustra 3. Dilated, large 4. SB collapsed

Question 15

What condition has lareg sigmoid colon seen at kidney level slice, Air- fillied out pouching, with NO FAT STRANDING>

Answer 15

Diverticulosis

Question 16

What is seen as inflamation around organs in CT?

Answer 16

FAT STRANDING- mid density, strands, near inflammed organ

Question 17

Mr. KFC CT shows sigmoid full of local hypoattenuated strands, thick edematous sigmoid wall

Answer 17

Diverticulitis

Question 18

This DDX may cause this on a CT? IBD, Ischemic Bowel, Intusseption, Diverticulitis?

Answer 18

TARGET sign- edema, fat, air, water contrast formed

Question 19

WHat is tricky about DX appedciits?

Answer 19

GREAT pretender- Classic sign- n/v, acute, McBurney pain-diffuse to local. BUT 10% have this. Appedix can be in many locations.

Question 20

What is order of procedure for PT if Appendix is suspected?

Answer 20

1. Children US 1st 2. Adult- CT IV CON ONLY 3. THin Adults, PREG- US

Question 21

What are DX findings for Appendix on CT and US

Answer 21

CT- edema, fat stranding, >6mm dilated, appendolith. US- non compressible, >6mm dilated, peri appendical fluid

Question 22

WHihc is worse with Hernias? Stranguated vs Incarerated?

Answer 22

Incareated- unble to reduce Stranulate- ischemia-ER

Question 23

What causes pancreatisis?

Answer 23

ETOH, gallstones, Rx, Drugs, Virues.

Question 24

What are indicative finding on CT for pancreatiits?

Answer 24

Fluid, Fat stranding, unable to see pancreaas

Question 25

WHat is sign of AAA vs Disection>

Answer 25

1. AAA-no hyperattenuation. >3mm 2. Dissection-split Lumen w/ contrast then a clot hypoattenuation

Question 26

What is best test to DX pneumoperitouem?

Answer 26

CT- double wall sign-clearly see both sides of bowel wall, and Falciform ligament-pulling from liver and wall

Question 27

Can you see aire around gallbladder cause by infection gas producing Bacteria on US?

Answer 27

NO. CT for emphysematuos cholecysisits

Question 28

How do you located fluid/ascites in ABdomen?

Answer 28

1. look near spleen and liver. Both should be close to ABD wall 2. RAdiologist determine if blood

Question 29

If asked by preceptor, if you want CON or non CON for kideny stone,what should you say?

Answer 29

CT best for renal/ureter NON CONTRAST. BUT, i learned changes, so based off HOSP

Question 30

WHat is best for REnal stones?

Answer 30

CT best for hyrdoureter, polycstic kidney, Renal CA, Renal Trauma

Question 31

Mrs. Bracy is 13wk pregnant, which US is needed?

Answer 31

Formal US via trainer HCP. Bladder full for transabdominal. <10wk intravagianl bladder empty

Question 32

In order to see ovary, ectopics pathology, which is best?

Answer 32

Transvaginal, hard to see

Question 33

Pregnant women CANNOT get?

Answer 33

CT!!!!. GEt UPT b4

Question 34

What can be seen in longiitudinal and transverse views w/ US on females?

Answer 34

LONG-1. Low frequency curvilnear: bladder, uterus, cervix. TRANS- bladder uterus

Question 35

Where is the endometrial strip?

Answer 35

Line belwo uterus. TRANS- closer to tranducer head. LONG- central below uterus

Question 36

How early can gestatin be seen on US?

Answer 36

5-7wks

Question 37

Durning ED female visit what is important to note on US?

Answer 37

IUP, Size match dates, heartmotion

Question 38

WHat is seen on transvaginal early US? 4-5wks

Answer 38

Sac visible- anechoic hole, souround by Double dedicual sac

Question 39

WHat is seen on transvaginal early US? 5-6wks

Answer 39

Gestational sac +yolk sac.

Question 40

WHat is seen on transvaginal early US? 6-8wks

Answer 40

Gestational sac +yolk sac, + fetal pole

Question 41

WHat is seen on transvaginal early US? 7-9wks

Answer 41

Fetal pole + cardiac anatomy

Question 42

Why doesnt visual early IUP NOT gurantee ectopic?

Answer 42

Twins, multple pregnacy. Heterotrophic pregnancy/ EctopicPT- syncope, UPT, transvaginal

Question 43

12 weeks what can be measured?

Answer 43

HR 130-160

Question 44

Pt is at 7-13 wks what measurement should be taken?

Answer 44

Crown to rump

Question 45

Pt is at 13 wks what measurement should be taken?

Answer 45

Bipartietal diameter+CRL

Question 46

Pt is at 14 wks what measurement should be taken?

Answer 46

Femur length + BD+CRL

Question 47

Pt is at >14 wks what measurement should be taken?

Answer 47

ABdominal circumference- Late. FL+AC= age monitors growth

Question 48

As a student or non formal US tech, should we give gender?

Answer 48

NO, very variabl. GIRLS 3 line sign- vaginal folds

Question 49

What is progression of PID and can be seen on CT?

Answer 49

Tubo ovarian absecc.