A standard twin mattress is 39 by 75 inches. A king is 76 by 80 inches. This means that a headboard for a king bed is going to be about 76 inches or wider, plenty wide enough to go along the length of a twin bed. Headboards are often slightly wider than the bed for which they are made.
Hemoglobin, Hematocrit, Blood Count. In order to donate blood, a woman must have a hemoglobin level of at least 12.5 g/dL, and a man must have a hemoglobin level of at least 13.0 g/dL. For all donors, the hemoglobin level can be no greater than 20 g/dL.
It is a constant struggle for the blood banks and transplant centers to maintain an adequate supply. The answer to your question is not the same for both organ and blood donation, so I will first address blood donation. Yes, you can donate blood, if you meet the following criteria: 1  Your sugar level is controlled. 2  You are in good health. 3  Your blood pressure is below 180/100. 4  You are not anemic (low red blood cells).