Rigor mois come early in all, except: PGI 14
Rigor mois typically refers to the postmortem stiffening of the body. The question is about which condition causes rigor mois to appear earlier than usual. I remember that certain conditions can accelerate rigor. For example, hypothermia or hyposthenia (low body temperature) can speed up the onset of rigor. On the other hand, hyperthermia (like in heat stroke) might delay it.
Wait, the question is about which condition does NOT have early rigor mois. So the exception would be a condition where rigor comes late. Let me think. If the options include something like septicemia or high fever, those would delay rigor. But if the options have conditions like poisoning with certain substances (like opium or chloroform), those might accelerate rigor.
But the correct answer here is probably a condition that delays rigor. For example, if one of the options is "heat stroke" or "high fever," that would be the exception. Since the user's correct answer is missing the options, I need to structure the explanation based on the general principle.
The core concept is understanding factors affecting rigor mois. The correct answer is the one that causes delayed rigor. Each wrong option would be a factor that accelerates it. The clinical pearl would be that low temperatures speed up rigor, high temperatures slow it down.
I need to make sure the explanation is thorough but concise, fitting within the character limit. Also, use the required sections: Core Concept, Why Correct, Why Wrong, Clinical Pearl, and Correct Answer Line. Since the options are missing, I'll use placeholders for the options but explain the reasoning based on known factors.
Wait, the user provided a sample explanation where the correct answer was "Heat stroke" as the exception. Maybe in their question, the options include conditions like hypothermia, poisoning, etc., and the exception is heat stroke. So in that case, the correct answer would be the one that causes delayed rigor.
I need to structure the explanation accordingly, making sure to explain each part clearly. Let me check the character count to stay within 2500. Also, use bold for key terms and sections. Avoid markdown headings, just bold the section names. Alright, putting it all together now.
**Core Concept**
Rigor mois is a postmortem phenomenon caused by ATP depletion leading to sustained muscle contraction. Its onset timing varies based on antemortem physiological states, such as temperature, metabolic status, and cause of death.
**Why the Correct Answer is Right**
Early rigor mois occurs in conditions associated with hypothermia, hyposthenia (low body temperature), or rapid ATP depletion (e.g., poisoning with curare or strychnine). Conversely, *delayed* rigor mois occurs in hyperthermia (e.g., heat stroke) due to denaturation of contractile proteins or in septicemia due to accelerated ATP breakdown. The exception here is a condition where rigor mois is delayed, making it the correct answer.
**Why Each Wrong Option is Incorrect**
**Option A:** Hypothermia accelerates rigor mois due to reduced enzymatic