What does biphasic and triphasic mean?

Triphasic: three phases—forward flow, flow reversal, and a second forward component. • Biphasic: two phases—one forward flow and one reverse.

What is the difference between monophasic biphasic and triphasic Doppler sounds?

triphasic which occurs in arteries and is the result of the combination of ventricular systole, elasticity of the blood vessels and the backflow caused by the closing of the semilunar valves; monophasic which occurs when the flow of blood is no longer pulsatile.

What is biphasic Doppler?

biphasic: having two phases or variations having forward and reverse flow 5. systolic forward flow. either of the following (controversial): diastolic flow reversal without late diastolic forward flow (more common)

What is the difference between biphasic and triphasic?

Biphasic: Static level of estrogen with two different progestin rates that switch mid-cycle. Triphasic: Varying estrogen and progestin levels through day 21 of the cycle.

What is monophasic biphasic and triphasic?

Combination Pills Monophasic: Even levels of estrogen and progestin provided through cycle days 1 to 21. Biphasic: Static level of estrogen with two different progestin rates that switch mid-cycle. Triphasic: Varying estrogen and progestin levels through day 21 of the cycle.

What is the benefit of triphasic birth control?

These hormones work in combination to prevent ovulation, thin the lining of the uterine wall, and thicken the cervical mucus — all of which significantly lower the risk of unwanted pregnancy. Triphasic birth control pills can also reduce the chance of developing ovarian cysts and help regulate the menstrual cycle.

What does triphasic mean?

in three phases
Medical Definition of triphasic : having or occurring in three phases.

Why do I need a PVR test?

Why do I need this test? Your physician has recommended that you have this test to evaluate the blood flow in your arms and legs. This test is used to evaluate the presence of peripheral arterial disease.

What is a normal ABI?

An ABI ratio between 1.0 and 1.4 is normal. An ABI ratio between 0.9 and 1.0 is borderline. An ABI ratio of 0.9 or less means you have PAD. An ABI ratio between 0.4 and 0.7 means you have moderate PAD. An ABI ratio less than 0.4 means you have severe PAD.

What does monophasic mean?

Medical Definition of monophasic. 1 : having a single phase specifically : relating to or being a record of a nerve impulse that is negative or positive but not both a monophasic action potential — compare diphasic sense b, polyphasic sense 1.

What does biphasic mean?

Biphasic, meaning having two phases, may refer to: Phase (matter), in the physical sciences, a biphasic system, e.g. one involving liquid water and steam Biphasic sleep, a nap or siesta in addition to the usual sleep episode at night.

What is the difference between biphasic and triphasic waveforms?

The waveform should be triphasic, corresponding to the three phases of a heart beat (systole, diastole, elastic recoil). Biphasic waveform indicates mild to moderate disease and monophasic flow indicates significant disease.

What is a leg ultrasound?

A leg arterial ultrasound is a vascular ultrasound that uses ultrasound technology to create images of your blood vessels, such as your veins and arteries.