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Dr. Deirdre Grobbelaar

General Practitioner

Photo of Dr. Deirdre Grobbelaar

Dr. Deirdre Grobbelaar

General Practitioner

  • Dr D Grobbelaar

    • Ravenscroft Street, Hermanus Medical Centre
    • Hermanus
  • Qualifications:
    MBChB - University of Pretoria (1987)
  • Languages:
    Afrikaans English
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  • About Deirdre

    Ultrasound is safe and painless and produces images of the inside of the body using sound waves. The imaging, also called ultrasound scanning or sonography, involves the use of a transducer (probe) and specialised sound conducting gel placed directly on the skin.

    High-frequency sound waves are transmitted from the probe through the gel into the body. The transducer collects the sounds that bounce back and a computer then uses those sound waves to create an image. These examinations do not use ionizing radiation (as used in x-rays), thus there is no radiation exposure to the patient. Because ultrasound images are captured in real-time, they can show the structure and movement of the body’s internal organs, as well as blood flowing through blood vessels.

    You should wear comfortable, loose-fitting clothing for your ultrasound exam. You may need to remove all clothing and jewelry in the area to be examined. You may be asked to wear a gown during the procedure.

    Preparation for the procedure will depend on the type of examination you will have. For some scans your doctor may instruct you not to eat or drink for up to 12 hours before your appointment. For others you may be asked to drink up to six glasses of water two hours prior to your exam and avoid urinating so that your bladder is full when the scan begins. 

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