Step 1. Calculate the 24 hr morphine dose: 3 mg x 24 = 72 mg IV morphine/24 hrs; Step 2. Convert IV to oral morphine: at a ratio of 1 mg IV = 3 mg oral; thus 72 mg IV = 216 mg po/24 hours; Step 3. Convert the oral morphine dose to Duragesic - there are two methods: METHOD 1. Look in the PDR, find the morphine conversion table, it says that 135-224 mg of morphine = 50 mcg patch. Note, this range of morphine is very broad; 50% of patients will be under-dosed when this conversion table is used. METHOD 2. Use a ratio of MS:fentanyl of 100:1; 216mg/100/24hrs = 90 mcg/hr, can rounded to 75 mcg or 100 mcg patch.
The bridge is an engineering feat on its own and there is an informative foot path up to the bridge and a pedestrian walkway across it. You can get great photos of the bridge from Hoover Dam and of Hoover Dam from the bridge. Standing over that much air was a little unnerving for me, but still pretty neat.
Hoover Dam. Hoover Dam, formerly called Boulder Dam, dam in Black Canyon on the Colorado River, at the Arizona-Nevada border, U.S. Constructed between 1930 and 1936, it is the highest concrete arch dam in the United States. It impounds Lake Mead, which extends for 115 miles (185 km) upstream and is one of the largest manmade lakes in the world.