You can ensure itâs delivered by using a tracking number on your receipt. Like a cashierâs check, there is a fee to get a money order. Fees vary widely, but banks and credit unions are usually the more expensive option, charging around $5 to $10. You can get a money order for just a dollar or two at the post office or Wal-Mart.
gina during exercise but no diagnostic ECG changes, or 2) inadequate blood pressure re-sponse (e.g., increase in systolic blood pres-sureG25 mm Hg) in the absence of valvular disease or heart failure, leading to reduced negative predictive value of ETT. 2. Baseline ECG changes leading to reduced specificity (as previously discussed). 3. Rapid resolution of ECG changes. Resolution of exercise-inducedSTsegmentdepressionsinearly recovery (e.g., G 1 min); such changes have re-duced specificity to detect obstructive CAD. 4. Insufficient workload can lead to a lower sen-
3. Characteristics of the Normal ECG. It is important to remember that there is a wide range of normal variability in the 12 lead ECG. The following normal ECG characteristics, therefore, are not absolute. It takes considerable ECG reading experience to discover all the normal variants.