Transferrin saturation is a calculated value resulting from a medical laboratory test to measure the amount of iron bound to transferrin in the blood. The liver produces transferrin, which is a protein that serves to bind iron molecules and carry them through the bloodstream to the bone marrow.
In addition to the cough, your child may also have a hoarse voice and have laboured breathing. Croup is most common in autumn and winter, and when a child is between 6 months and 3 years old. However, older children up to 15 years old sometimes get croup too. Croup is a common respiratory condition in children caused by either a viral infection or allergy.
Croup is more common in boys than in girls, usually occurs between six and 36 months of age, and peaks during the second year of life.2,5,6 It has been reported occasionally in adolescents and rarely in adults.7 The incidence of croup often peaks during the fall season, although sporadic cases may occur throughout the year.8,9.