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.
The largest group of RNs work as staff nurses in hospitals. Although medical duties of RNs vary greatly depending upon the specialty or area in which they work, all RNs offer emotional support and advice to patients and their families. Registered nurses obtain an associate's or bachelor's degree in nursing.