1 First appointments with the psychiatrist are generally more expensive, averaging around $150 for 45 to 60 minutes. 2  Follow-up visits for 15 to 30 minutes cost $75. 3  On the other hand, a visit to a psychiatrist plus medication costs around $380 according to Hereverycentcounts.com.
The first phase is a brief isovolumetric contraction, lasting about 0.05 s and a longer ejection phase of about 0.30 s. The isovolumetric contraction causes left ventricular pressure to rise above atrial pressure, which closes the mitral valve and produces the first heart sound.
The two atria contract at the same time, then they relax while the two ventricles simultaneously contract. The contraction phase of the ventricle chambers is called systole. The relaxation phase is called diastole. At a normal heart rate, one cardiac cycle last for 0.8 seconds!