The document discusses several endocrine and metabolic conditions. The endocrine system secretes hormones that regulate various bodily functions including metabolism, water balance, immune reactions, and sexual functions. Polydipsia is an excessive thirst condition seen in diabetes that results from fluid loss into tissues from infections, organ failure, or mental disorders. Hyperkalemia is an excessive amount of potassium in the blood, with mild cases common in hospitals but well tolerated, while severe hyperkalemia at levels over 7 mEq/L can cause cardiac arrest and death.

1. ENDOCRINE SYSTEM

2. Endocrine glands secrete hormones Regulate metabolic rate Water mineral balance Immune system reactions Sexual functions

3. POLYDIPSIA Condition of having an excessive amount of thirst, such as in diabetes

4. Loss of body fluids from the bloodstream into the tissues due to: Severe infections (sepsis) or burns Heart, liver, or kidney failure Mental disorder (psychogenic polydipsia)

5. HYPERKALEMIA Condition of having an excessive amount of potassium in the blood

6. MILD HYPERKALEMIA Common in 8% of hospitalized patients Usually well tolerated Potassium levels 3.5-5.0 mEq/L

7. SEVERE HYPERKALEMIA Extremely high levels of potassium in blood Lead to cardiac arrest Death Potassium levels above 7milliequivalents per liter (mEq/L)