1. What are the causes of vomiting and other gastrointestinal tract problems in type 2 diabetes…

1. What are the causes of vomiting and other gastrointestinal tract problems in type 2 diabetes mellitus? What is the correct treatment for a patient with nausea and vomiting, already taking hypoglycaemic agents and antihypertensives? 2. In diabetic ketoacidosis there is an overall potassium deficit. Since insulin promotes cellular potassium uptake, potassium should be given along with insulin in the treatment of ketoacidosis since hypokalaemia could potentially cause tachycardia. Why? I realise that hyperkalaemia can cause problems since the concentration gradient and therefore the membrane potential is reduced thus inhibiting proper function, but what is the problem with hypokalaemia? Is it that the membrane potential and the concentration gradient are too large? If so, how is this possible considering that the body may have too little potassium to make the intracellular concentration approach normal, so that although the extracellular concentration is reduced, the intracellular concentration is also reduced?

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