Use the following patient vignette to answer questions 28 – 29. Maya, a 33 y.o. African American woman, presents to the ED with dry cough and dyspnea. She is not a smoker and denies having asthma. She is very concerned about her cough because she works 60 hour per week in a prestigious law firm.  You notice some minor cuts on her hands and inquire about them. Frustrated, she responds that they are mostly from handling many case files, but they haven’t healed properly for the past two weeks, despite using Neosporin (topical ointment) daily. PFTs show low TLC and reduced DLco. Chest X-ray reveals bilateral hilar adenopathy, with no infiltrates. 28. You ordered blood work before your imaging. What abnormal lab result(s) do you expect?

5. Study the diagrams below and answer the questions that follow.   Right-click on the button below to open the image in a new tab:

TOTAL QUESTION 3: [5]

Use the following patient vignette to answer questions 25 – 26. A 52-year old man arrives at your office complaining of dyspnea at rest and non-productive cough. He states his cough has gotten worse over the past few months. He has been smoking 1 pack a day for the past 35 years and states he only has an occasional glass of wine at dinner. His family history is significant for pancreatic cancer. He complains that he has had trouble sleeping, has been very tired all the time, and has abnormal muscle cramping. Upon physical examination you observe mild digital clubbing. You order a CT and find extensive honey-combing present at both lung bases. 25. Which of the following is the most likely diagnosis for this patient?

8.6 State one way in which the grade 8 learners ensured the reliability of this investigation. (1)

TOTAL QUESTION 1: [5]

10. A 26-year-old man with shortness of breath and wheezing secondary to acute exacerbation of chronic asthma is treated with an inhaler containing albuterol.  Ten minutes after treatment, the patient’s symptoms improve. Which of the following mechanisms is most likely responsible for the therapeutic effect of albuterol in this patient?

Glycolysis and aerobic respiration collectively produce up to __________ ATP per glucose, while glycolysis and anaerobic fermentation collectively produce __________.  

9. Study the diagram below and answer the questions that follow.   Right-click on the button below to open the image in a new tab:

1.2 To test for the presence of glucose in a food, which of the following reagents should be used? (1)       A) Biuret   B) Benedict’s reagent   C) Ethanol   D) Iodine