Crystallisation is a separation technique that is used to separate a solid that has dissolved in a liquid and made a solution. solution that has as much solid dissolved in it as it can possibly contain is called a saturated solution. As the saturated solution is allowed to cool, the solid will come out of the solution and crystals will start to grow.
Unsourced material may be challenged and removed. (September 2007). Methemoglobinemia (or methaemoglobinaemia) is a disorder characterized by the presence of a higher than normal level of methemoglobin (metHb, i.e., ferric [Fe 3+ ] rather than ferrous [Fe 2+ ] haemoglobin) in the blood.igns and symptoms of methemoglobinemia (methemoglobin level above 1%) include shortness of breath, cyanosis, mental status changes (~50%), headache, fatigue, exercise intolerance, dizziness and loss of consciousness.
Hypoglycemia is the most common metabolic problem in neonates. In children, a blood glucose value of less than 40 mg/dL (2.2 mmol/L) represents hypoglycemia. A plasma glucose level of less than 30 mg/dL (1.65 mmol/L) in the first 24 hours of life and less than 45 mg/dL (2.5 mmol/L) thereafter constitutes hypoglycemia in the newborn. Patients with hypoglycemia may be asymptomatic or may present with severe central nervous system (CNS) and cardiopulmonary disturbances.