sternal puncture

puncture /punc·ture/ (-cher) the act of piercing or penetrating with a pointed object or instrument; a wound so made.

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cisternal puncture  puncture of the cisterna cerebellomedullaris through the posterior atlanto-occipital membrane to obtain cerebrospinal fluid.

lumbar puncture , spinal puncture the withdrawal of fluid from the subarachnoid space in the lumbar region, usually between the third and fourth lumbar vertebrae.

sternal puncture  removal of bone marrow from the manubrium of the sternum through an appropriate needle.

ventricular puncture  puncture of a cerebral ventricle for the withdrawal of fluid.

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sternal puncture

n.

Removal of bone marrow from the manubrium of the sternum with a needle.

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sternal puncture

Etymology: Gk, sternon, chest; L, punctura

a diagnostic procedure in which a needle is inserted into the marrow of the sternum to remove bone marrow samples for diagnosis.

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puncture [pungk´chur]

1. the act of piercing or penetrating with a pointed object.

2. a wound so made.

cisternal puncture see cisternal puncture.

lumbar puncture (spinal puncture) see lumbar puncture.

sternal puncture see sternal puncture.

tracheoesophageal puncture surgical creation of a tracheoesophageal fistula to hold a one-way plastic valve to restore speech after Laryngectomy.

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sternal [ster´nal]

pertaining to the sternum.

sternal puncture insertion of a hollow needle into the manubrium of the sternum to obtain a sample of bone marrow. The sternum is chosen because of its accessibility and because it is a thin, flat bone. The procedure must be done under surgical asepsis. The clinician anesthetizes the skin and periosteum with a local anesthetic before introducing the sternal needle. The needle is designed with a special guard to prevent penetration beyond the desired depth. When cells are being aspirated into the syringe the patient may experience a sharp pain; otherwise the procedure should not be painful. Samples are examined for abnormal cells, for the proportion of cells in various stages of development, and for the characteristics of the blood cells that predominate. This information is used in conjunction with clinical findings and other tests in diagnosis of blood disorders such as leukemia, lymphoma, multiple myeloma, and anemia.

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sternal

pertaining to the sternum.

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sternal puncture

insertion of a hollow needle into the manubrium of the sternum for the purpose of obtaining a sample of bone marrow. The sternum is chosen because of its accessibility and because it is a flat bone in many species.

sternal recumbency

the animal lies down on its ventral thoracic and abdominal walls, usually with the legs tucked underneath the body; the sagittal plane is vertical and the head is in a vertical plane. Called also dorsal recumbency.