postmortem


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postmortem

 [pōst-mor´tem]
performed or occurring after death.

Care of the body after death (postmortem care) is an essential component of the total care of the patient and surviving family members and friends. Specific policies and procedures for postmortem care are a matter of agency policy, local customs, and cultural and religious ritual.

Physical care of the body is based on certain changes that take place at a fairly predictable rate, depending on body temperature at the time of death, and environmental temperature once death has taken place. The size of the body and the presence or absence of bacterial infection also influence these changes.

Rigor mortis is the first of these changes after cessation of circulation and respiration. Within two to four hours after death depletion of glycogen stores prevents synthesis of adenosine triphosphate (ATP). Without ATP the muscle fibers do not relax, resulting in rigid contraction of the fibers and immobilization of the joints. The rigor first occurs in the involuntary muscles and then involves the voluntary musculature, starting with the head and neck and descending gradually to the trunk and lower extremities. The process usually takes about 45 hours and continues for about 96 hours.

Another noticeable change is cooling of the body, which occurs rather rapidly once circulation stops and the heat-regulating center in the brain no longer is functioning. This postmortem loss of body heat is called algor mortis.

Decomposition of the tissues begins almost as soon as blood supply stops. With the breakdown of hemoglobin, discoloration, or livor mortis, appears as mottled, reddened areas that can be mistaken for bruises, particularly in the extremities or other parts of the body where there is pooling of blood. As deterioration of tissues continues and bacterial fermentation occurs, the tissues soften and then liquefy. Refrigeration or some other method of cooling the body inhibits this process.

post·mor·tem (PM),

(pōst-mōr'tĕm),
1. Pertaining to or occurring during the period after death.
See also: autopsy (1).
2. Postmortem examination.
See also: autopsy (1).
[post- + L. acc. case of mors (mort-), death]

postmortem

(pōst-môr′təm)
adj.
1. Occurring or done after death.
2. Of or relating to a medical examination of a dead body.
n.
1. See autopsy.
2. Informal An analysis or review of a finished event.

post mor′tem adv.

post·mor·tem

(pōst-mōr'tĕm)
1. Pertaining to or occurring during the period after death.
2. Colloquialism for autopsy (1).
[post- + L. acc. case of mors (mort-), death]

Postmortem

After death.
Mentioned in: Autopsy
References in periodicals archive ?
Glycolysis in postmortem muscle is supposed to follow the same reactions as in living animals.
Although this process can take longer in water-submerged victims, these individuals may remain concealed longer when they become hidden in water or vegetation or lost in a large body of water; this results in correspondingly advanced postmortem changes before recovery.
La consulta postmortem permite el analisis de las condiciones que llevaron a la muerte a una persona y a traves de estos ejercicios de evaluacion, se puede mejorar el conocimiento, posponer la muerte y preservar la calidad de vida en los futuros enfermos.
Five children had fatty livers at the time of autopsy; this finding is used occasionally to identify children for whom postmortem screening for these diseases is required.
Furthermore, to determine whether these changes in dialysate DA concentrations provide a more sensitive index of altered DA function than do changes in postmortem tissue DA concentrations, we measured striatal tissue DA concentrations in male rats of the same age, exposed to PCBs for identical periods of time.
Det Sgt Iain Grant, from Chace Avenue CID, said: "A man has been helping us with our inquiries and has been released pending the results of the postmortem."
These three cases discredit the notion that the effects of postmortem events in specific cases should be divided according to the valuation and enforceability dichotomy.
Thus for the bug-savvy gumshoe, a maggot's biological clock can provide a highly accurate measure of a body's postmortem interval, or PMI -- a variable that very much interests murder investigators.
Bray is accused of operating the CCTV equipment to cause the postmortem examination to be replayed on February 8.
Police recovered the body this morning and shifted to THQ hospital for postmortem.