John James  is a 55 y/o man who had labs drawn prior to a yearly physical.  He is here for followup of results from labs drawn 2 weeks prior. He has no complaints except for occasional fatigue.  His CBC and an anemia panel reveals the following: Hemoglobin (Hb): 9.2 g/dL (Normal range for age: 11.0 – 13.5 g/dL Mean corpuscular volume (MCV): 68 fL (Normal range for age: 76 – 92 fL) Mean corpuscular hemoglobin concentration (MCHC):  low value Serum ferritin: 6 ng/mL (Normal range for age: 12 – 120 ng/mL) Serum iron: 15 µg/dL (Normal range for age: 40 – 100 µg/dL) Total iron-binding capacity (TIBC):490 µg/dL (Normal range for age: 250 – 450 µg/dL) 1-Based on the MCV and MCHC- What type of anemia is this and why does this anemia cause a low MCV? (2 points)  2-What lab reflects iron stores? (1) 3-Why is the TIBC high? (1) 4- List at least 2 possible differentials that may be causing his anemia. (1)

Mrs. Garcia brings her 5-year-old, Manuel, to the emergency department with mild fever (100 F), irritability,  rhinorrhea, sore throat, and  a barking cough.    Is this croup or epiglottitis? Explain why you chose answer. Describe the differences in clinical symptoms between croup and epiglotitis. (3 points) What are the organisms that cause epiglottis and what are the organisms that cause croup? (2 point)

If it is substituted for the question mark, which symbol correctly completes this statement? -272  ?  -93{“version”:”1.1″,”math”:”-272  ?  -93″}

Evaluate: fx=2xx2-1 3-2x{“version”:”1.1″,”math”:”fx=2xx2-1 3-2x”}   for x=-3{“version”:”1.1″,”math”:”x=-3″} and enter the result.  If the result is irrational, round to the nearest integer.  If the result is an imaginary number, enter IMAGINARY.

Which polynomial function has zeros at x=0{“version”:”1.1″,”math”:”x=0″} and x=4{“version”:”1.1″,”math”:”x=4″}, both with multiplicity two?  [The correct function may also have other zero(s).]

For the following simplification to be correct, what must be the value of the exponent n{“version”:”1.1″,”math”:”n”} ? a0b4anb2=ab2{“version”:”1.1″,”math”:”a0b4anb2=ab2″} Assume a{“version”:”1.1″,”math”:”a”} and b{“version”:”1.1″,”math”:”b”} are nonzero real numbers.

For any real number b{“version”:”1.1″,”math”:”b”}, which formula gives the correct distance d{“version”:”1.1″,”math”:”d”} between points 2,4{“version”:”1.1″,”math”:”2,4″} and 1,b{“version”:”1.1″,”math”:”1,b”} in the Cartesian plane?

For the following simplification to be correct, what must be the value of the exponent n{“version”:”1.1″,”math”:”n”} ? ab2nb3=anb11{“version”:”1.1″,”math”:”ab2nb3=anb11″} Assume a{“version”:”1.1″,”math”:”a”} and b{“version”:”1.1″,”math”:”b”} are real numbers.

The point -6,12{“version”:”1.1″,”math”:”-6,12″} lies in which quadrant of the Cartesian plane?

Which expression is the completely simplified form of a8y2 {“version”:”1.1″,”math”:”a8y2 ”} ? Assume a{“version”:”1.1″,”math”:”a”} and y{“version”:”1.1″,”math”:”y”} are real numbers and that the given radical expression is a real number.