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Lab Test and Medical Investigation


Ultrasound is a type of scanning technique that uses high-frequency sound waves to get images of internal body structures. It is also known as sonography or medical sonography.

An ultrasound scan can be used to monitor a pregnancy, to diagnose any condition, or guide a surgeon during certain procedures.

When it’s done:

Ultrasound is recommended depending on the symptoms and for:

  • The assessment of a breast lump
  • The assessment of the fetus inside the uterus during Pregnancy
  • Assess gynecological conditions
  • Tumor treatment or Guide a needle for biopsy
  • Find genital and prostate problems
  • The evaluation of the thyroid gland
  • The diagnosis of cancer
  • The diagnosis of infections
  • The diagnosis of a gallbladder disease
  • Assessing abnormalities of muscles and tendons
  • Evaluate blood flow

When to Avoid:

There is no specific condition when this scan should be avoided.

How to prepare:

Most ultrasound procedures do not require preparation. The exceptions are listed below:

Abdominal Ultrasound and Abdominal Ultrasound with Doppler(Liver, spleen, kidneys, pancreas, gallbladder, abdominal aorta, biliary system)

  • Adults: Avoid eating or drinking eight hours prior to the exam.
  • Children: Skip one meal or avoid eating or drinking four hours before the scan study.
  • Take your usual medications with a small sip of water.
  • If you are diabetic, kindly take your insulin.

Pelvic Ultrasound (Uterus, ovaries, fallopian tubes, urinary bladder)

  • Eat normally.
  • One hour before your exam, drink a good amount of water.
  • Refrain from emptying your bladder prior your exam.

Bladder Ultrasound

  • Drink good amount of water for both male and female patients, one hour before your exam.

Prostate-Transrectal Ultrasound

  • Two hours prior the exam, Fleet enema cleansing must be done.

Transvaginal Ultrasound

  • Drink a good amount of water one hour prior exam. Do not urinate prior exam, so you arrive for the exam with a full bladder.


  • No unprotected sexual relations during the first ten days of your menstrual cycle.

Ultrasound-Guided Biopsies

  • Ultrasound breast biopsy
  • Liver biopsy / paracentesis / thoracentesis / prostate biopsy
  • Avoid eating or drinking after midnight the day before your biopsy.
  • You must be off aspirin, blood thinners, and vitamin E for seven days before your biopsy.


UPDATED ON 14/05/2024

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