Bone Densitometry Review

BONE DENSITOMETRY REVIEW QUESTIONS AND
CORRECT SOLUTIONS A+ GRADED


What_are_bone_densitometry_measurement_values_used_to_assess?_-
_Correct_answer~_#Bone_mineral_content_BMC

#Bone_Mineral_Density_BMD

#Bone_strength

#_Assist_with_diagnosis_of_disease_with_low_bone_density

#_Monitors_effects_of_Therapy

#_Predicts_future_fracture_risks



List_advantages_of_using_DXA._-_Correct_answer~_Most_widely_used

#Low_radiation_dose

#_Wide_availability

#_Ease_of_use

#Short_scan_times

#High_resolution_images

#_Good_precision

#_Stable_calibration



DXA_uses_a_________technique._It_scans_at________different_photon_energies._It_elimi
nates_the_contributions_of________________________and_measures_the_x-
ray_attenuation_of___________alone._-
_Correct_answer~_Subtraction,_two,_soft_tissue,_bone

, DXA_Software_-_Correct_answer~_#proprietary_software

#Not_all_dxa_machines_operate_the_same

#Tech_must_be_educated_about_specifics_for_their_facility

#Personnel_requirements_vary_among_states.



What_are_the_two_types_of_bone?_-_Correct_answer~_#Cortical:_dense_outer_shell

#trabecular:_(Cancellous)_delicate_lattice_structure_with_in_the_bone.



Remodeling_process:_-_Correct_answer~_Old_bone_is_replaced_with_new_bone



What_are_osteoclasts_and_osteoblasts?_-
_Correct_answer~_Osteoclasts:_Break_down_bone_and_remove_old_bone_and_create_pi
ts_(resorption)._

Osteoblasts:_Build_new_bone_and_fill_pits_(Formation).



What_are_resorption_and_formation?_-
_Correct_answer~_Resorption:_osteoclasts_break_down_and_remove_the_the_old_bone_
and_create_pits.

Formation:_Building_of_new_bone_and_filling_of_pits.



Name_several_things_that_can_lead_to_bone_loss._-
_Correct_answer~_#_Increased_osteoclast_activity

#_Impaired_osteoblast_activity

#_Increased_Number_of_cycles

#_Short_times_between_cycles