G6PD deficiency causes an increased suseptibility to the oxidation of hemoglobin, which in turn, causes the precipitation of hemoglobin inside of the red blood cell.
Which one of the following conditions is associated with glucose-6-phosphate dehydrogenase (G6PD) deficiency?

The creatinine clearance for this patient is 100 mL/min.
Creatinine clearance values are calculated using the following equation:
Creatinine Clearance (mL / min) = (Urine Creatinine / Serum Creatinine) x Urine Volume (mL) / [ time (hr) x
60 ]
For this patient Creatinine clearance (mL/min)= (120/1.5) x (1800 / [24 x 60])
80 x 1800/1440, which is 80 x 1.25, or 100 mL/min
A 45-year-old male of average height and weight had a serum creatinine of 1.5 mg/dL and urine creatinine was
120 mg/dL; the total volume of urine collected over a 24-hour period was 1,800 mL. Calculate the creatinine clearance for this patient in mL/min.

Antibodies are differentiated based on their heavy chains; different heavy chains create different isotypes.
Humans have five different isotypes of immunoglobulins.
Immunology
The part of the molecule responsible for differences among immunoglobulin classes is:

When making a platelet concentrate, the proper procedure is to start with a low centrifugation of the whole blood bag. After the plasma is removed, it is centrifuged again at a higher speed to separate the platelet portion from the plasma portion.
Blood bank
The following steps must be followed in preparation of a platelet concentrate:

The concentration of circulating ferritin is proportional to the size of iron stores.
Which of the following will give the best overall picture of a patient's iron stores: