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  2. Venipuncture - Wikipedia

    en.wikipedia.org/wiki/Venipuncture

    These tubes are manufactured with a specific volume of gas removed from the sealed tube. When a needle from a hub or transfer device is inserted into the stopper, the tube's vacuum automatically pulls in the required volume of blood. [citation needed] The basic Evacuated Tube System (ETS) consists of a needle, a tube holder, and the evacuated ...

  3. Vacutainer - Wikipedia

    en.wikipedia.org/wiki/Vacutainer

    A range of Vacutainer tubes containing blood. A vacutainer blood collection tube is a sterile glass or plastic test tube with a colored rubber stopper creating a vacuum seal inside of the tube, facilitating the drawing of a predetermined volume of liquid. Vacutainer tubes may contain additives designed to stabilize and preserve the specimen ...

  4. Ultrasonography of chronic venous insufficiency of the legs

    en.wikipedia.org/wiki/Ultrasonography_of_chronic...

    The reflected ultrasound is received by the probe, transformed into an electric impulse as voltage, and sent to the engine for signal processing and conversion to an image on the screen. The depth reached by the ultrasound beam is dependent on the frequency of the probe used. The higher the frequency, the lesser the depth reached. [9]

  5. Template:Table of blood sampling tubes - Wikipedia

    en.wikipedia.org/wiki/Template:Table_of_blood...

    Serum-separating tube (SST): Tube inversions promote clotting. Most chemistry, endocrine and serology tests, including hepatitis and HIV. Orange Clot activator and serum separating gel [5] Rapid serum-separating tube (RST). Dark green Sodium heparin (anticoagulant) Chromosome testing, HLA typing, ammonia, lactate: Light green Lithium heparin ...

  6. Hematometra - Wikipedia

    en.wikipedia.org/wiki/Hematometra

    Although hematometra can often be diagnosed based purely on the patient's history of amenorrhea and cyclic abdominal pain, as well as a palpable pelvic mass on examination, the diagnosis can be confirmed by ultrasound, which will show blood pooled in the uterus and an enlargement of the uterine cavity.

  7. Percutaneous umbilical cord blood sampling - Wikipedia

    en.wikipedia.org/wiki/Percutaneous_umbilical...

    An ultrasound is performed before the procedure to view the position of the fetus and may be used during the procedure to help guide the needle. The mother’s blood is drawn for comparison against fetal blood, and intravenous access is established in the mother in order to supply medications as needed.

  8. Ultrasonography of liver tumors - Wikipedia

    en.wikipedia.org/wiki/Ultrasonography_of_liver...

    During venous and sinusoidal phase the pattern is hypoechoic, and the central fluid is contrast enhanced. CEUS examination is useful because it confirms the clinical suspicion of abscess. In addition, it allows for an accurate measurement of the collection size and an indication regarding its topography inside the liver (lobe, segment).

  9. Transvaginal oocyte retrieval - Wikipedia

    en.wikipedia.org/wiki/Transvaginal_oocyte_retrieval

    Under ultrasound guidance, the operator inserts a 16.5 gauge × 11.8″ (1.6 mm × 300 mm outer diameter) needle through the vaginal wall and into an ovarian follicle, taking care not to injure nearby organs and blood vessels. The other end of the needle is attached to a suction device.