To structure this portion of the note, you can use another mnemonic: OLD CHARTS, as in what would you find if you looked at the patient's old chart. 1  Onset. 2  Location. 3  Duration. 4  CHaracter (sharp, dull, etc) 5  Alleviating/Aggravating factors. 6  Radiation. 7  Temporal pattern (every morning, all day, etc) 8  Symptoms associated.
Rat urine poses such a significant health risk that Abolish Pest Control recommends the use of biohazard suits, complete with gloves and respirators, when removing it. Waste removal experts focus on attics as the main nesting area, using vacuum cleaners equipped with special filters.
Some philodendrons are, however, known to be toxic to mice and rats. In one study, 100 mg of Philodendron cordatum leaves suspended in distilled water were fed to six mice. Three of the mice died. The same experiment was done with 100 mg of P. cordatum stems on three mice and none of them died.