8. Graph

7. Write the equation of the piecewise function shown on the graph below.

5. Find and simplify the difference quotient

There are four QRS complexes in a 6-second strip. The R-to-R intervals vary. All other features are normal. What is the rhythm called?

49. A 43-pound  (19.5 kg) child has an order for oral cefaclor. What is the doage in mg to administer for 7.8 mls? (Round the answer to the nearest whole number.)

42. A nurse is providing teaching for a patient who is on diuretic therapy and has a new prescription for potassium chloride (KCl) 20 mEq extended-release PO daily. Which instruction should the nurse provide about the new prescription?

Q6. A nurse is preparing to administer 20 mg of antiemetic by intermittent IV infusion every 12 hr. The medication is available in a dosage strength of 20 mg in D5W 100 mL. The nurse will run the infusion over 30 minutes using an IV set with a drop factor of 15 gtt/mL. Calculate the rate of the infusion in gtt/min. (Round the answer to the nearest whole number.)

Q28. Choose the best description of a central venous access catheter.

46. An IV infusion of 1000 mL containing 40,000 units heparin is running at 25 mL/hr. Calculate the units/hr of heparin infusing. (Round the answer to the nearest whole number.)

Q27. Choose the best description of a peripherally inserted central catheter (PICC) line.