IR Flashcards
Tolosa Hunt Syndrome
same pathologic process as orbital pseudotumor, but has cavernous sinus involvement
Ventricular Volume
25 mL
Subarachnoid Space Volume
125 mL
Total CSF Volume
150 mL
CSF production rate
500 mL/day
How may times does CSF replenish
3-4 times
Isolated spinal cord involvement in MS?
20%
Petrous apex is pneumatized in what % of the pop?
10%
What % of longitudinal temporal bone fx have CN injury?
20%
What % of transverse temporal bone fx have CN injury?
50%
Longitudinal temp bone fx have what kind of hearing loss?
Conductive
Transverse temp bone fx have what kind of hearing loss?
Sensorineural
Right atrium pressure
0-8 mm Hg
Right ventricle pressure, diastole
0-8 mm Hg
Right ventricle pressure, systolic
15-30 mm Hg
Pulmonary artery pressure, systolic
15-30 mm Hg
Pulmonary artery pressure, diastolic
3-12 mm Hg diastolic
IVC diameter of > ? mm, requires a bird’s nest filter
28 mm
What is the bird’s nest filter range
28-40 mm
If the IVC is > ? mm, sepaate IVC filters inserted in each common iliac vein
40 mm
What do you use to treat nonocclusive mesenteric ischemia? and how much?
Vasodilator papaverine (60 mg bolus, then 30-60 mg/h)
What size of splenic a. aneurysm warrants tx?
> 2.5 cm
Vasopressin is used for what? how much do you give?
Control active lower GI bleeding when catheterization doesn’t work,
directly infused into IMA/SMA
Dose: 0.2-0.4 units/minute (100 units mixed in 500 mL saline, given at 1 mL/minute)
Continuous infusion up to 24 hours
After 24 hours, tachyphylaxis (lack of response) develops
Bleeding rate of what to be angiographically +?
0.5-1.0 mL/min
