Dating ultrasound 9 weeks

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The long term effects of repeated ultrasound exposures on the fetus are not fully known.

It is recommended that ultrasound only be used if medically indicated. The heartbeat may not be detected for reasons that include: tipped uterus, larger abdomen, or inaccurate dating with last menstrual period.

The sound waves bounce off bones and tissue returning back to the transducer to generate black and white images of the fetus.

Ultrasounds may be performed at any point during pregnancy, and the results are seen immediately on a monitor during the procedure.

Advanced Ultrasound – This exam is similar to the standard ultrasound, but the exam targets a suspected problem and uses more sophisticated equipment.

Doppler Ultrasound – This imaging procedure measures slight changes in the frequency of the ultrasound waves as they bounce off moving objects, such as blood cells.

Although the terms ultrasound and sonogram are technically different, they are used interchangeably and reference the same exam.Additional ultrasounds might be ordered separately if your healthcare provider suspects a complication or problem related to your pregnancy.Ultrasounds are diagnostic procedures that detect or aid in the detection of abnormalities and conditions related to pregnancy.Because ultrasound should only be used when medically indicated, many healthy pregnancies will not require ultrasound.The average number of ultrasounds varies with each healthcare provider.

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