Thirty questions on the chemistry panel: what is on a basic panel against a comprehensive one and when to order each, the physiological role of sodium, potassium, chloride and bicarbonate, glucose, blood urea nitrogen and creatinine, the liver studies and the four patterns of hepatic abnormality, the renal, hepatic and metabolic laboratory patterns side by side, the anion gap, and the laboratory evaluation of fluid and electrolyte balance. This lecture does ask you to calculate the anion gap. Professor Reynolds walked through it in the lecture and gave the normal range aloud, so the worked examples here are deliberate. She was equally clear about the two she does not want computed: the glomerular filtration rate — “I don’t need you to calculate that or know that just yet, but know of it” — and the corrected sodium, which she does with a clinical calculator. Neither is asked for here. You are not expected to recall reference ranges. Her words: “the hard and fast memorize these numbers, we don’t do that to you … we always give you reference ranges.” That matters, because this deck states three ranges two different ways — bicarbonate, glucose and blood urea nitrogen each differ between the text slides and her own fishbone diagram. No question is built on a disputed figure; learn the direction of abnormality and the approximate value. The fishbone itself is a picture with no text. Slide 4 extracts as completely blank and carries the entire reference set, so anything drawn from it is marked as image-only. Every question cites its slide.
Answers reveal only after you choose. Your score and a breakdown by objective appear at the end, with a review of everything you missed.