<s>[INST] context: In jaundice embalming, the use of formaldehyde as the primary preservative initiates a chain of events that causes the unwanted yellow-green color reaction to occur in most cases. In embalming of jaundice cases, the formaldehyde based solutions convers the bilirubin in the body into biliverdin and the colour changes into green. EMBALMING: THANATOPRAXIA * It is the treatment of the dead body with antiseptics and preservatives to stop putrefaction and preserve the body. * Embalming a body within 6 hoursQ - satisfactory result. * It produces a chemical stiffeningQ similar to rigor mois. * Embalming rigidity is permanent and Normal rigor does not occurQ. Constituents of a typical embalming fluid * Preservative - Commonly a mixture of formaldehyde, glu!taraldehyde. Methanol is used to hold the formaldehyde in solution. * Germicide - Phenol * Humectant (to preserve the moisture) - Glycerine * Buffer (to maintain the pH) - Sodium borate/sodium bicar!bonate. * Anticoagulants-Sodium citrate/sodium oxalate * Dyes (to restore the body's natural colouration) - eosin * + Perfume - wintergreen * Vehicle - water upto 10 L Note: Ethanol is not a constituent of embalming fluid. Injection types: * Aerial injection is preferred* It is forcing of fluid in an aery to reach the tissues through the aerioles and capillaries. * Diffusion occurs into the cells and ti sues for preservation at the capillary level.* For overcoming the clots & better perfusion in aerial injection, High pressure with low flow is preffered. Methods of Injection * Continuous injection & drainage * Continuous injection and disrupted drainage * Alternate injection and drainage * Discontinuous injection and drainage - Best method of injection [/INST] question: While performing embalming, difficulty encountered due to aerial system problem. How should the embalming fluid be introduced to overcome this problem? | options: A: Low pressure high velocity B: Low pressure low velocity C: High pressure high velocity D: High pressure low velocity | answer: D </s>