1 Critical Value: Our sample has size of 30, and so there are 29 degrees of freedom. 2  The critical value for confidence level of 90% is given by t * = 1.699.3  Margin of Error: Now we use the margin of error formula and obtain a margin of error of t * s /â n = (1.699)(2) /â(30) = 0.620. Critical Value: Our sample has size of 30, and so there are 29 degrees of freedom. 2  The critical value for confidence level of 90% is given by t * = 1.699.
vasodilator as diltiazem. Minimum therapeutic plasma diltiazem concentrations appear to be in the range of 50 to 200 ng/mL. There is a departure from linearity when dose strengths are increased; the half-life is slightly increased with dose. A study that compared patients with
What is diltiazem (Cardizem, Cardizem CD, Cardizem LA, Cartia XT, Dilacor XR, Dilt-CD, Diltia XT, Diltiazem Hydrochloride CD, Diltiazem Hydrochloride SR, Diltiazem Hydrochloride XR, Diltiazem Hydrochloride XT, Dilt-XR, Diltzac, Taztia XT, Tiazac)? Diltiazem is in a group of drugs called calcium channel blockers. It works by relaxing the muscles of your heart and blood vessels. Diltiazem is used to treat hypertension (high blood pressure), angina (chest pain), and certain heart rhythm disorders. Diltiazem may also be used for purposes not listed in this medication guide. turquoise, capsule, imprinted with Cardizem CD 120 mg. blue/turquoise, capsule, imprinted with Cardizem CD 180 mg.