Instantaneous rigor is seen in -: (A) Cadaveric spasm, (B) Rigor mois, (C) Cold stiffening, (D) Gas stiffening
Answer is A. Cadaveric spasm is stiffness and rigidity of muscles immediately after death without moving into primary relaxation. Dr. Narayana Reddys Synopsis of Forensic Medicine & Toxicology 27 th edition pg. 81.