In the sickle solubility test, if the solution of RBCs and reagent is clear and you can see the black lines behind the tube, the interpretation for that tube is

The portion of the spleen responsible for culling and pitting is: 

A father brings his 2-year old son to the doctor for a check-up. He had recently moved to upstate New York from a poor neighborhood in Los Angeles. The father commented that his son had been very cranky lately. He attributed this condition to teething. He had a habit of chewing on his favorite painted wooden toys, which were family heirlooms. He was referred to the hospital laboratory from the well-baby clinic because he was lethargic and pale. A CBC was ordered.   TEST RESULT REFERENCE RANGE RBC 3.0 X 10^6/ul 5-6 X 10^6/ul WBC 8.0 X 10^3/ul 4-10 X 10^3/ul PLT 180,000/ul 150,000 – 450,000/ul HGB 6.5 g/dl 14-16 g/dl HCT 22% 37-44% Retic count 12% 5-8%   Many of the RBCs looked like the cell below.    What is the most likely condition?

Little Johnny goes to physician for a routine checkup.  He is 6 years old and his physical exam indicates he is a little shorter than normal and his head circumference is also a little smaller than average.  His pediatrician orders a CBC.  The CBC shows decreased levels of RBCs, WBCs, and PLTs.  The pediatrician also orders a chromosome analysis on little Johnny which indicates increased fragility and breakage after the addition of diepoxybutane.  Based on these findings, what is little Johnny suffering from? 

What is the purpose of the erythrocyte sedimentation rate?

SECTION A QUESTION 1 Answer ALL the questions in this section and number your answers accordingly on a FOLIO Paper for upload. Use the data to support your answers where relevant. You may annotate and include diagrams in your answers. 1.1. Right-click on the button below to see Extract 1 and Graph 1   (1) 1.1.1 Sketch a normal demand curve for a good or service (2) 1.1.2 Explain whether Figure 1 confirms that cigarettes would have a normal demand curve (3) 1.1.3   Using the data in the text, calculate the price elasticity of demand for cigarettes (2) 1.1.4 How might this value be explained? (3) 1.1.5 Explain, with examples, what is meant by the statement that the consumption of cigarettes generates negative externalities (4) 1.1.6 Discuss whether high indirect taxes are the best way to discourage smoking (6)   Total SECTION A [20]

1.9 Consider 25 cm3 of HCl with concentration of 2 mol.dm-3. What volume of water is needed to reduce the concentration to 1,2 mol.dm-3?   (2)

Upon completion of the exam,  Scan all your answers to this exam into one .pdf file. Name your file as indicated: CAM ECON AS_InitialSurname_June P2 CLICK SUBMIT QUIZ and OPEN the UPLOAD QUIZ to upload your PDF FILE. 

  SECTION B Answer ONE question from this section     QUESTION 2   2.1 Explain the link between the basic economic problem of scarcity and opportunity cost (8) 2.2 Discuss whether planning has any role to play in the allocation of resources in a modern mixed economic system (12)   QUESTION 3   3.1 Explain, with examples the meaning of the terms public good and merit good (8) 3.2 Discuss how a government might increase the provision of public and merit goods (12)   QUESTION 4   4.1 Explain, with the help of a diagram(s), how changes in aggregate demand and aggregate supply can cause inflation in an economy (8) 4.2 Discuss whether deflation is more of a problem in an economy than inflation (12)   Total SECTION B [20]   Total for paper 2 [40]

INSTRUCTIONS 1. The answers you provide must be your own, original work. No copying from any source is allowed. 2. Calculators may be used. 3. WRITE answers FOR SECTION A and B on FOLIO line paper. Where appropriate you may use the graph paper supplied. Click on the button below to download the graphing paper. Remember to number your answers on the graphing paper. 4. No typed answers are allowed. 5. Multiple pages of handwritten answers must be scanned and saved as 1 PDF FILE. No images are allowed or will be accepted. (Use Cam-scanner or any app that has this function). 6. Write your answers to each question below one another and NOT NEXT to each other. Draw a line at the end of each question. 7. Your pages scanned in the PDF File should be UPRIGHT and not sideways or upside down. 8. Scan all your answers to this exam into one .pdf file. Name your file as indicated: CAM ECON AS_InitialSurname_June P2 9. FINAL answers must be rounded off to 2 decimal places unless stated otherwise in any specific question. 10. Write NEATLY and Legible and number according to the numbering system in this assessment.