All of the following conditions impair coagulation except

All of the following conditions like vitamin K deficiency, severe hypocalcaemia, and Liver disease impair coagulation except Vascular spasm.
Vascular spasm develops in the coronary artery, the main symptom is chest pain often described as constricting, crushing, pressure, squeezing, or tightness. A spasm can reduce or block blood flow to part of the heart. If a spasm lasts long enough, you can have chest pain (angina) and even a heart attack.