A normal range for blood urea nitrogen is generally 8 to 24 mg/dL for adult men (2.86 to 8.57 mmol/L) and 6 to 21 mg/dL (2.14 to 7.50 mmol/L) for adult women. However, urea nitrogen levels vary by age. Infants have lower levels than other people do.
Fortunately, freezing zucchini and other summer squash is a snap: All you do is cut it into half-inch slices, blanch it in a pot of boiling water for three minutes, transfer it to a bowl of ice water to cool, drain it, and bag it.
Make sure it is not green in color that indicates an immature squash. How to store: Spaghetti squash can be stored at room temperature up to one month. Once cut wrap it in plastic and store in the fridge for up to 2 days. Spaghetti squash freezes well.Partially thaw before use, and re steam to make it tender but still firm (about 5 minutes).his medium-sized cylinder-shaped squash can be yellow, cream or tan in color. Spaghetti squash weigh 4-8 pounds. The flesh comes in spaghetti-shaped strands and a sweet, mild flavor. A four pound squash will yield about 5 cups.