<prompt> A patient with an endocrine abnormality shows hung up reflex. Which of the following condition causes hung up reflex?MyxedemaHypehyroidismHypothyroidismPheochromocytoma  <response>: A prolonged relaxation phase of a deep tendon reflex causing a hung up reflex, especially of the ankle jerk, is a classical finding of hypothyroidism Woltmans sign, but is not specific for it. Hung-up reflexes can also be seen in diabetes, hypothermia, and in the presence of ceain drugs. The reflexes return to normal with treatment. Ref: Bauer D.C., McPhee S.J. 2010. Chapter 20. Thyroid Disease. In S.J. McPhee, G.D. Hammer Eds, Pathophysiology of Disease, 6e. 