Philippians 4:5-6 - Let your reasonableness be known to everyone. The Lord is at hand; do not be anxious about anything, but in everything by prayer and supplication with thanksgiving let your requests be made known to God.
Dear God, I am anxious about tomorrow's testing. Please help things go well. The anesthesia, the process, the financial aspect. Everything about it that has me anxious, please calm me. You will provide. You will bless me richly as a result of what I am going through and despite of what I am going through. You already have. Thank You. In Jesus' Name, Amen!