Which one(s) of the essetional chemcial elements (C, H, O, N) does blood contain.

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Describe 3 conditions in which size of cells is important in clinical diagnoses.

To determine which essential chemical elements blood contains, we need to look at its composition. Blood is composed of various elements, including water, red blood cells, white blood cells, platelets, and plasma.

In terms of the essential chemical elements you mentioned (C, H, O, N), blood contains carbon (C), hydrogen (H), oxygen (O), and nitrogen (N). These elements are present in different molecules and compounds within the blood. For example, proteins, which are abundant in blood, contain carbon, hydrogen, oxygen, and nitrogen.

Now let's move on to the next question about three conditions in which the size of cells is important in clinical diagnoses. The size of cells can provide valuable information in diagnosing various medical conditions. Here are three examples:

1. Anemia: Anemia is a condition characterized by a low red blood cell count or low hemoglobin levels. The size of red blood cells is an important diagnostic factor in determining the type of anemia. For example, in a condition called microcytic anemia, the red blood cells are smaller than normal. By analyzing the size of red blood cells, healthcare professionals can differentiate between different forms of anemia.

2. Leukemia: Leukemia is a type of cancer that affects the white blood cells. In diagnosing leukemia, the size and morphology of white blood cells is essential. Abnormal cell size or shape can indicate certain types of leukemia and help guide further testing and treatment.

3. Lymphoma: Lymphoma is a cancer that originates in the lymph nodes or lymphatic system. Determining the size and distribution of abnormal lymphocytes (a type of white blood cell) is crucial for diagnosing and classifying different subtypes of lymphoma.

In these three examples, the size of cells plays a critical role in clinical diagnoses by providing important clues about the underlying condition.