<prompt> A 30 year old lady co sudden onset breathlessness, anxiety, palpitation feeling of impending doom. Physical examination is normal. What is the diagnosis -Panic attackPTSDConversion disorderAcute psychosis  <response>: Ans. is a i.e., Panic attack DSM-IV Criteria for a Panic AttackA panic attack is a period of intense fear or discomfort, developing abruptly and peaking within 10 minutes, and requiring at least four of the followingChest pain or discomfortQChills or hot flushesDerealization feeling of unreality or depersonalization being detached from oneselfFear of losing controlFeeling of chokingNausea or abdominal distressPalpitations or tachycardia QParesthesiasSensations of shortness of breath Q or smotheringSense of impending doomQSweatingTrembling or shaking 