This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous (Gynae), Subject name: Gynaecology & Obstetrics
Gas in the aorta after IUFD, is which sign - 
Select and explain. 
A. Robert, B. Spalding, C. Ball, D. Blair-Hartley
A: Robert
Answer: A: Robert 
Explanation: Ans. is 'a' i.e., RobertRadiological signs of 1UFDSignInterval (After Death)Robert sign (gas in great vessels)12 hSpalding sign (overlapping of skull bones)1 weekBlair-Hartley/ Ball sign (hyperflexion/ hyperextension of spine with overcrowding of ribs3-4 weeks