Question 1

Dr. Liu Aihua, Chief Physician, Beijing Hospital

Accepted Answer

Dr. Liu Aihua is a Chief Physician specializing in internal medicine at Beijing Hospital, a prestigious tertiary-care teaching hospital affiliated with Peking University Health Science Center. As a senior clinician and academic, Dr. Liu has extensive expertise in the diagnosis and management of complex cardiovascular and metabolic disorders, including hypertension, coronary artery disease, heart failure, and diabetes-related complications. She actively contributes to clinical research, medical education, and national guideline development, and is widely recognized for her patient-centered approach and commitment to evidence-based practice.

Question 2

What are the causes of anemia in women?

Accepted Answer

Female anemia most commonly results from iron deficiency, often due to chronic blood loss—particularly heavy or prolonged menstrual bleeding (menorrhagia)—which depletes iron stores faster than dietary intake can replenish them. Other significant contributors include inadequate dietary iron (especially in vegetarian or restrictive diets), impaired iron absorption (e.g., due to celiac disease or atrophic gastritis), and increased physiological demands during pregnancy or lactation. Less common bu

Question 3

What are the early symptoms of leukemia in children?

Accepted Answer

Early signs and symptoms of childhood leukemia can be subtle and nonspecific, often mimicking common viral illnesses—making timely recognition challenging. Common early manifestations include persistent fatigue, pallor, and unexplained fever due to bone marrow infiltration and impaired hematopoiesis. Children may develop easy bruising or petechiae (small red or purple skin spots) as a result of thrombocytopenia, and they may experience recurrent or prolonged infections secondary to neutropenia.

Question 4

How is blood type inherited?

Accepted Answer

Blood type is inherited in a Mendelian pattern governed by the ABO gene located on chromosome 9. This gene has three primary alleles: IA, IB, and i. The IA and IB alleles are codominant, while the i allele is recessive. An individual inherits one allele from each parent, resulting in six possible genotypes—IAIA, IAi, IBIB, IBi, IAIB, and ii—which correspond to the four major ABO phenotypes: type A, type B, type AB, and type O, respectively. For example, a person with genotype IAi expresses blood

Question 5

How is secondary thrombocytosis diagnosed in children?

Accepted Answer

Diagnosing secondary (reactive) thrombocytosis in children requires a systematic, stepwise approach to distinguish it from primary (clonal) disorders such as essential thrombocythemia. The evaluation begins with a thorough history and physical examination—focusing on signs of infection, inflammation, iron deficiency, recent surgery or trauma, malignancy, or chronic inflammatory conditions (e.g., juvenile idiopathic arthritis, inflammatory bowel disease). Laboratory testing is central: a complete

Dr. Liu Aihua, Chief Physician, Beijing Hospital

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Dr. Liu Aihua, Chief Physician, Beijing Hospital

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Related Questions

What are the causes of anemia in women?

What are the early symptoms of leukemia in children?

How is blood type inherited?

How is secondary thrombocytosis diagnosed in children?

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