Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
A representative figure of the traditional hemoglobin solubility test (HST) with the blood samples in the phosphate buffer solution in transparent glass vials to allow the observation of turbidity that forms when sickle hemoglobin is present. Positive and negative samples are denoted by “+” and “−”, respectively.
