Which of the following ion channels open once threshold is achieved, resulting in action potential which propagates down the nerve axon

What is the name of the structure in the axons of myelinated fibers that can undergo depolarization?

After executing the following code snippet, what part is the file object? infile = open(“input.txt”, “r”)

28. Calculate the upper and lower range of the prescribed medication. Round to the nearest hundredth 10-20 mg/kg/day for a patient weighing 52.4 kg  __________        __________  

39. Refer to the selected package insert information to answer the questions below Identify the types of dilute used for reconstitution under the section labeled For Intramuscular Use. Look at the four-column table for reconstitution, and look at the information provided for the four different strengths of vials available.  What is the recommended amount of dilute specified for a 2 g vial?

50. BSA = √  (wt (kg) × ht (cm)                                3600 Calculate BSA to the nearest hundredth for a child who is 96.2 cm tall and weighs 15.17 kg

46. Refer to the cefazolin package insert below to locate the information for pediatric dosages.  Refer to the Cefazolin package insert above to do the calculations for a child who weighs 35 pounds (lb) and has a moderately severe infection. What is the upper daily dosage range if divided into four doses? Round to the nearest tenth.  

33. Use the medication label below to calculate the dosage. Express answers to the nearest hundredth. Prepare a 125 mg dose of Valproic Acid.

12. Convert the body weights. Round to the nearest tenth. Convert 87.5 lbs to kg.   

36. Refer to the selected package insert information to answer the questions below. Identify the types of diluent that may be used for reconstitution under the section labeled For Intramuscular Use.  Look at the four-column table for reconstitution, and look at the information provided for the four different strengths of vials available. What is the recommended amount of dilute specified for a 250 mg vial?