San Francisco weather essentials. In San Francisco, if you donât like the weather, just drive a few miles. The temperature at both ends of the mile-long Golden Gate Bridge can be 20Â°F different. Since a cityâs average temperature for the year is not helpful to travelers, here is a general breakdown of what to expect.
Vitamin D Tests. One of the more common vitamin and mineral blood tests is the vitamin D test. A vitamin D deficiency or excess can lead to problems such as bone malformation, bone weakness and improper calcium metabolism.
2. Bone tests: 1  Blood level of 25-OH-Vitamin D (normal >30 ng/ml) 2  Blood level of intact parathyroid hormone (iPTH; it is usually high in advanced kidney disease or with low 25-OH-Vitamin D levels) 3  Bone mineral density test (to check for osteoporosis)