Final answer:
Trousseau sign and Chvostek sign are clinical tests for hypocalcemia, reflecting low calcium levels in the blood and are indicative of disorders in calcium metabolism.
Step-by-step explanation:
Trousseau and Chvostek signs are clinical findings associated with hypocalcemia, which is a lower than normal level of calcium in the blood. Trousseau sign is elicited by inflating a blood pressure cuff on the upper arm to above systolic pressure for 3-5 minutes, leading to spasm of muscles of the hand and forearm in individuals with hypocalcemia. Conversely, Chvostek sign is a facial phenomenon where tapping on the facial nerve in front of the ear elicits twitching of the facial muscles. These signs are often indicative of conditions affecting calcium metabolism, such as vitamin D deficiency, chronic renal failure, or parathyroid disorders.