The caffeine content of coffee itself varies enormously. According to the USDA*, 1 rounded teaspoon of instant coffee (1.8 grams in weight) contains 57 mg of caffeine. No matter how much water, milk, or creamer you add to the coffee - the amount of caffeine will remain the same. Barone and Roberts* quote a value of 40-108 mgs per 150mls.
There are many different types of nurses and types of nursing jobs. Responsibilities: 1  Perform physical exams and health histories.  Provide health promotion, counseling and education.
RN Job Descriptions. While the general tasks of a registered nurse are similar to those of an LPN/LVN and may be common across most nursing specialties, the specifics are really dependent on the specialty itself. Below, you will find an overview of a typical RN job description, as well as categories of jobs and RN specialties within those categories.