A soft foam is prepared by reaction of toluene-2,6-diisocyanate and ethylene glycol (HOCH2-CH2-OH). A small amount of glycerol is added to the reaction mixture, giving a much stiffer foam than before. Explain.

Anurse is preparing to administer lidocaine via continuous iv infusion at 4 mg/min. available is lidocaine 2 g dextrose 5% in water 500 ml. the nurse should set the iv pump to deliver how many ml/hr? (round the answer to the nearest whole number. use a leading zero if applicable. do not use a trailing zero.)

Anurse is teaching a client who has a new prescription for nitroglycerin patches. the nurse should identify which of the following statements as an indication that the client understands the teaching? a. “i will move the patch to my leg if i get a headache.” b. “i will rotate the application site to avoid skin irritation.” c. “i will apply a new patch if i have chest pain.” d. “i cannot take a sublingual tablet of nitroglycerin after applying the patch.”

Anurse is assessing a client who is receiving clindamycin. which of the following findings should the nurse identify as an adverse effect of this medication? a. report of blurred vision b. watery diarrhea c. hypertension d. agitation