Read each patient complaint. A blood smear sample in a hemocytometer grid has been provided, as well as information on any additional abnormal observations that may help in a diagnosis. Follow the directions to perform a red blood cell, white blood cell, and platelet count. Patient Complaint Patient 11011 A 16 y/o female was brought into the ER after she fainted while playing in a basketball game. She has been feeling fatigued and experiencing headaches over the last few weeks. Patient 22022 A 6 y/o male has been experiencing weight loss, weakness, and fatigue. The parents have been worried that he has not been hungry and is bruising easily. Patient 33033 A 71 y/o male was brought into the ER with extreme abdominal pain that is made worse by any movement. He has been experiencing some abdominal discomfort for the past few months. Patient 44044 A 26 y/o female has been experiencing fever, headache, sweating, sleepiness, fatigue and vomiting over the last 2 weeks. Red Blood Cells Step 1 Step 2 Step 3 Step 4 Examine the patient hemocytometer result son the next two pages. They show what would be seen through a microscope when counting blood cells. The lines are part of the hemocytometer grid and are used to make counting easier. Count the red blood cells for each patient. Start at the top left and move box by box to the right, row by row. Record your results on the “# of RBC’s in Grid” column in Table 1. To determine the number of cells per mm3, multiply the counted red blood cells by 100,000. Record the RBC count for each patient in Table 1. Use the information in the background section on normal values for a RBC count to determine whether the patient has normal RBC values. Record any abnormal results in Table 2. White Blood Cells Step 5 Count the white blood cells for each patient. Start at the top left and move box by box to the right, row by row. Record your results on the “# of WB’s in Grid” column in Table 1. Step 6 Step 7 To determine the number of cells per mm3, multiply the counted white blood cells by 1,000. Record the WBC count for each patient in Table 1. Use the information in the background section on normal values for a WBC count to determine whether the patient has normal WBC values. Record any abnormal results in Table 2. Platelets Step 8 Step 9 Step 10 Count the platelets for each patient. Start at the top left and move box by box to the right, row by row. Record your results on the “# of Platelets in Grid” column in Table 1. To determine the number of cells per mm3, multiply the counted platelets by 10,000. Record the platelet count for each patient in Table 1. Use the information in the background section on normal values for a platelet count to determine whether the patient has normal platelet values. Record any abnormal results in Table 2. Completing the Diagnosis Step 11 Step 12 Each patient also has an image with “Additional Observations.” Read the observations and make a note in Table 2 of any observations that may help you with the diagnosis. Use the patient complaint, blood cell count results, and additional observations to create a diagnosis. This may require some internet research. Record your hypothesized diagnosis for each patient in Table 2. HASPI Medical Anatomy & Physiology 13c Activity Name(s): ________________________ Period: _________ Date: ___________ Blood appears to be just a red fluid, but is actually made up of many different types of cells, molecules, and liquids. The liquid portion of blood is called plasma and is 90% water. Plasma is also made up of dissolved minerals such as potassium, sodium, and calcium. Proteins, such as hormones and antibodies also travel through the blood. The most common cellular components of blood include platelets, red blood cells, and white blood cells. Blood cells are created within the bone marrow and then differentiate to perform different functions throughout the body. Platelets Platelets, or thrombocytes, are irregularly-shaped cells circulating in the blood. Platelets are responsible for preventing excess blood loss by forming a “scab.” When platelets are exposed to the air, they begin to break apart and react with fibrinogen, that then creates fibrin, which are tiny thread-like fibers. Fibrin forms a web-like layer that prevents blood cells from passing through, and as this layer dries it hardens to form the scab that we see on the surface of a wound.