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ISCD CBDT EXAM QUESTIONS AND 100% CORRECT ANSWERS
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ISCD CBDT EXAM QUESTIONS AND 100%CORRECT ANSWERS
Cross-Calibration: Adding Systems/Hardware (same manufacturer) - Answer Scan 1
phantom on index, then 1 phantom on new scanner on 20 different days. If greater than
0.5% difference in mean BMD, contact manufacturer
Cross-Calibration: Adding Systems/Hardware (different technology/manufacturer) -
Answer Scan a minimum of 30 patients, representative of the facility's patient population
twice on the index system and twice on the new system within 60 days. Individual
patients may be measured on both scanners the same day, or ideally on different days,
but no more than 30 days apart for any one patient.
Cross-Calibration: Changing Hardware (same manufacturer & not entire system) -
Answer 1 tech does 10 phantom scans before and after hardware change. If mean BMD
is greater than 1%, contact manufacturer
Cross-Calibration: Changing Hardware (entire system - same/diff manufacturer) -
Answer Scan 30 patients once on initial system, then twice on new system within 60
days.
Biphosphonates (examples) - Answer (Orally, IV, or Injection - Most Commonly
Prescribed)
> Actonel (Risedronate)
> Atelvia (Delayed Response Risedronate)
> Fosamax (Alendronate)
> Boniva (Ibandronate)
> Reclast (Zoledronic Acid)
> Aredia
, SERM (selective estrogen receptor modulator) examples - Answer (Oral) Raloxifene
(Evista), bazedoxifene
rad/Gray equivalent - Answer 100 rad = 1 Gy
rem/Sievert equivalent - Answer 1 Sv = 100 rem
Roentgen (R)/Coulomb per Kilogram equivalent - Answer 1 R = 0.000258 C/kg
What is in hydroxyapatite? - Answer calcium, phosphate, and oxygen
Curie/Becquerel Equivalent - Answer 1 Curie = 37 Billion Bq
Minimal Acceptable Precision Analysis Stats - Answer Lumbar Spine: 1.9% (LSC = 5.3%)
Total Hip: 1.8% (LSC = 5.0%)
Femoral Neck: 2.5% (LSC = 6.9%)
Indications for Pre-Operative DXA testing having hip surgery - Answer Dorr
Classification of B or C
After total hip arthroplasty, what zones are recommended? - Answer Gruen zones at the
femur, and Delee/Charnley or Wilkinson method at pelvis
What does parathyroid hormone do? - Answer Anabolic (not anti-resorptive) (Injection)
regulates amount of calcium, phosphorus, and magnesium in bones and blood.
> Teriparatide (Forteo)
> 1-84 PTH (Preotact and Preos)
Denosumab - Answer (Injection) Prevent bone loss by blocking a certain receptor in the
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