List the weight and volume of the current DR-T ICD.

• A. 77g 32ccs
• B. 60g 20ccs
• C. 70g 25ccs
• D. 90g 40ccs

Answer: (A)

Understanding the physical specs of an implantable cardioverter-defibrillator helps you see why this pair is the best match. Modern DR-T ICDs are designed to be compact enough to sit comfortably in a chest pocket, yet substantial enough to house the battery, capacitors, and electronics needed to deliver defibrillation therapy. The mass and internal volume you’d expect for current models are in roughly the 70–80 g range and about 30–40 cc. A device around 77 g with a 32 cc volume fits that typical profile: the weight mainly reflects the titanium shell plus the internal battery and circuitry, while the 32 cc volume represents the space needed for those components.

The other options either imply a device that’s noticeably smaller than modern models or larger and bulkier than they usually are, which makes them less plausible as the current DR-T ICD. Therefore, 77 g and 32 cc align with what you’d expect for a current implantable defibrillator, making it the best answer.