Normal Lab Values Reference Sheet and Exit Ticket: CBC, Electrolytes, Glucose

Description

This is a one concept handout built to fill a five to ten minute slot: a bell ringer to open class, a warm-up before a lab interpretation activity, an exit ticket at the end, or a handout you can leave for a substitute. Print it as is or project the reference page. There is nothing to assemble and no materials to gather. The reference sheet runs one to two pages and covers normal adult reference ranges for the complete blood count, including hemoglobin, hematocrit, white blood cells and platelets, alongside electrolyte, renal and glucose values such as sodium, potassium, calcium, magnesium, BUN, creatinine and fasting glucose. Rules for reading a value as high, low or borderline are stated plainly, and the common trouble spots are written in a ‘students think X, actually Y’ format so the misconception is named before your group meets it on a question. An eight question self-check follows, with an answer key that explains every option, correct and incorrect. Those per-option explanations are the reason the self-check is worth collecting. Each distractor is tied to the specific mix-up behind it, for example confusing BUN with creatinine or reading a potassium value against the sodium range, so a stack of exit tickets tells you which misreading your class is making rather than only how many answers were missed. That makes the reteach decision quick. It suits instructors teaching health science, anatomy and physiology, medical terminology, CNA or pre-nursing coursework at the high school, college or adult education level, and anyone who needs a short graded check on lab value interpretation. It is not a unit review, a case study set, or a full diagnostics lesson, and it does not cover arterial blood gases, coagulation studies or liver panels. One narrow concept, by design, so you can drop it into a class period without rearranging your plan. Every answer was independently verified before publication, and questions that did not hold up were removed rather than reworded.

AI note: The written content of this resource was drafted with AI tools, then reviewed by the author.