Also known as Cardiac Catheter Ablation Catheter ablation is a procedure that uses energy to make small scars in your heart tissue to prevent abnormal electrical signals from moving through your heart.
However, for any tax year, all current-year contributions are deducted first. The second 50% limitation refers to gifts (other than capital gain property) to certain types of charitable organizations (50% charities) that are considered first in computing the overall 50% limit.
Limits on the Charitable Contribution Deduction. Generally, you can deduct contributions up to 30 or 50 percent of your adjusted gross income depending on the nature and tax-exempt status of the charity you're giving to. You can deduct contributions of appreciated capital gains assets up to 20 percent of your AGI. Don't worry if your gifts exceed these thresholds.