Lancet Information and Courses from MediaLab, Inc.
These are the MediaLab courses that cover Lancet and links to relevant pages within the course.
Learn more about laboratory continuing education for medical technologists to earn CE credit for AMT, ASCP, NCA, and state license renewal and recertification. Or get information about laboratory safety and compliance courses that deliver cost-effective OSHA safety training and continuing education to your laboratory's employees.
| Adsorption (2) Once the gp120 drops down and binds with CD4 and the co-receptor, the HIV spike is exposed.The spike is a glycoprotein with a molecular weight of 41 Kilodaltons. This gp41 molecule acts much like a spring-loaded lancet. Once triggered into action by the attachment of the gp120 to the CD4 and co-receptor, the gp41 springs out and pierces the membrane of the host cell. | View Page |
| Case Marcie Moore was a phlebotomist at a community hospital in Atlanta. It was her week to collect the pediatric unit and she was on her way to the room of a newborn for which she had just received orders to draw a STAT BMP (chem-7) and bilirubin. After informing the mother of the baby about the test she needed to perform, Marcie set up to perform a heel stick on the baby. Marcie chose a site on the outer edge of the heel on the bottom of the baby’s foot ( the correct area for a heel stick) and made a small incision with a Tenderfoot lancet after cleaning the site well with alcohol.She immediately began collecting the blood in the correct tube for the BMP and bilirubin. Blood flow was not strong so Marcie squeezed the baby’s foot a little to help the blood come out faster – the newborn was screaming and Marcie could tell it was making the mother uncomfortable. She wanted to hurry and get done so the mother could hold the baby.After the chemistry tech ran the blood tests on the tube, she informed Marcie that the newborn had a panic potassium level which did not coincide with the previous blood work on the newborn. Also the chemistry instrument could not perform the bilirubin due to hemolysis. Marcie was asked to recollect the specimen. | View Page |
| Discussion During a finger stick procedure it is important that the lancet be positioned on the finger so that the incision is perpendicular to the fingerprint. This allows a larger amount of blood to flow. It is also important to wipe away the first drop of blood that emerges form the incision with clean gauze, since it may contain tissue fluids that can cause incorrect test results. The first drop of blood may also contain traces of alcohol remaining from the cleaning step. Alcohol may break up or hemolyze blood cells, causing incorrect results.Relevant topics:Finger-stick collections, Finger-stick: site preparation, Finger-stick: puncture, Wipe away the first drop, Finger-stick specimen collection | View Page |
| Case A phlebotomist at Memorial Hills Hospital entered the room of a 6 year old patient. The only test ordered was a CBC, so the phlebotomist decided to do a finger stick. After gathering proper supplies for the finger stick, the phlebotomist began the procedure by putting on gloves and wiping the tip and side of the patient’s ring finger with alcohol. He positioned the safety lancet between the ball and the side of the finger and made a small incision. The child cried as the blood was collected.
| View Page |
| In what direction should the lancet be placed on the patient’s finger ? | View Page |
| Lancets Lancets are used for difficult venipunctures, including pediatric draws.
They are used for finger sticks with microcapillary collections.
| View Page |
| Finger stick - Finger stick collections A finger-stick collection is performed by piercing the fingertip with a safety Lancet, which controls the depth of incision, and collecting capillary blood. The BD Microtainer™ Brand Safety Flow Lancet is shown here.Finger-sticks should not be performed on children under one year of age.
| View Page |
| Finger stick - puncture Select a safety lancet appropriate for the size of the patient’s finger.You may warm the finger prior to puncture to increase blood flow.Make the puncture perpendicular, rather than parallel, to the finger print. | View Page |
| Heelstick - Pediatric collection procedures: Introduction Veins of small children and infants are too small for venipuncture;Safety Lancets are used to puncture the skin and collect capillary blood.Butterfly needles may be used to collect venous blood in older children.
| View Page |
| Which of the following shapes can be used to describe cocci? | View Page |
| Variations in the Shape of Cocci Some cocci appear slightly oval in shape. Other may be lancet shaped. | View Page |