Syphilis cannot spread from objects. Understand the biological requirements for *Treponema pallidum* survival and the conditions truly necessary for infection.
Tetralogy of Fallot disability status is complex. Learn how criteria shift based on severity, surgical correction, and residual functional limitations.
Unlock the secrets of heart efficiency. Learn the definition of stroke volume, its calculation, and how clinicians measure this vital cardiac health indicator.
Navigate the recovery period after back injections. Learn the difference between expected soreness, the true pain relief timeline, and critical warning signs.