| Hypaque enema | Enema with water-soluble radiographic contrast material, whether diatrizoate or other. (05 Mar 2000) |
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| hypaque swallow | gastrografin swallow |
| Ficoll-Hypaque technique | A density-gradient centrifugation technique for separating lymphocytes from other formed elements in the blood; the sample is layered onto a Ficoll-sodium metrizoate gradient of specific density; following centrifugation, lymphocytes are collected from the plasma-Ficoll interface. (05 Mar 2000) |
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