What can TcPO2 studies assess except?

TcPO2 studies, which measure transcutaneous partial pressure of oxygen, are primarily used to evaluate the perfusion and oxygenation of the skin, especially in the context of vascular health. This diagnostic tool provides crucial insights into the functional status of the microcirculation and helps determine various clinical outcomes.

The assessment of arterial obstruction is indeed outside the direct scope of what TcPO2 can evaluate. Arterial obstruction is typically assessed through imaging techniques like Doppler ultrasound, angiography, or CT angiography, which specifically visualize blood flow and blockages within the arteries. In contrast, TcPO2 studies assess tissue oxygenation rather than directly measuring blood flow or identifying specific obstructions in the arterial pathway.

On the other hand, the other options correctly represent the capabilities of TcPO2 studies. They play a significant role in the determination of amputation levels, as they can indicate areas of adequate perfusion versus those at risk of ischemia. Similarly, these studies are valuable for assessing skin graft viability by determining whether the grafted tissue is receiving sufficient blood supply to sustain itself. Finally, TcPO2 can also monitor the healing of stumps and foot perfusion, providing insights into recovery and vascular status in affected limbs.