Hr of baby goes as high as in 150-200 beats per minute?

See DR. Depending on the age of your baby, this may be normal. Babies under 1 year of age, have an average hear rate of 100-180 bpm. The heart rate may increase during crying bouts. Therer are certain tachcardias that can be seen during infancy so i would discuss this with your doctor as further work up may be needed.