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High-Yield Abbreviations & CEHRS Exam Prep

Duration: 45 min · Level: Foundational · Module: 2. Medical Terminology & Body Systems · Focus: abbreviations, do-not-use, Joint-Commission, exam-prep, medication

Learning objectives

By the end of this lesson you will be able to explain and apply:

  • Joint Commission "Do Not Use" abbreviations (memorize these)
  • High-yield medication abbreviations
  • Vital signs abbreviations
  • Chart status abbreviations
  • Care team abbreviations

You will then consolidate these ideas in the hands-on lab below.

Why this matters​

The CEHRS exam tests abbreviation recognition in documentation context.

Overview​

The CEHRS exam tests abbreviation recognition in documentation context. The Joint Commission's "Do Not Use" list is also tested — certain abbreviations are banned from clinical documentation because they cause medication errors. Know both what abbreviations mean AND which ones you must never use.

Key concepts​

Key idea

Joint Commission "Do Not Use" abbreviations (memorize these): U (for units — can be mistaken for 0), IU (for international units — can be mistaken for IV), Q.D./Q.O.D. (write daily/every other day), trailing zeros (1.0 mg — write 1 mg), naked decimal (.5 mg — write 0.5 mg)

  • High-yield medication abbreviations: PO (by mouth), IV (intravenous), IM (intramuscular), SubQ/SQ (subcutaneous), PRN (as needed), QID (four times daily), BID (twice daily), TID (three times daily), NPO (nothing by mouth)
  • Vital signs abbreviations: T (temperature), P (pulse), R (respiration rate), BP (blood pressure), SpO2 (peripheral oxygen saturation), BMI (body mass index), Ht (height), Wt (weight)
  • Chart status abbreviations: ADM (admission), D/C (discharge — also do not confuse with discontinue), Dx (diagnosis), Sx (symptoms), Tx (treatment), Hx (history), PMH (past medical history)
  • Care team abbreviations: MD (medical doctor), DO (doctor of osteopathic medicine), NP (nurse practitioner), PA (physician assistant), RN (registered nurse), LPN (licensed practical nurse), RT (respiratory therapist), PT (physical therapist)
  • Study strategy: create flashcard sets sorted by system; use Anki or any spaced repetition tool; aim to recognize 200+ abbreviations with 95%+ accuracy before exam day
Hands-on lab

Complete a 50-question abbreviation drill: given the abbreviation, write the meaning; given the meaning, write the correct abbreviation; identify which 5 of the 50 are Joint Commission "Do Not Use" abbreviations.

Check your understanding​

Try to recall each answer before expanding it.

Q1. What do you know about Joint Commission "Do Not Use" abbreviations (memorize these)?

U (for units — can be mistaken for 0), IU (for international units — can be mistaken for IV), Q.D./Q.O.D. (write daily/every other day), trailing zeros (1.0 mg — write 1 mg), naked decimal (.5 mg — write 0.5 mg)

Q2. What do you know about High-yield medication abbreviations?

PO (by mouth), IV (intravenous), IM (intramuscular), SubQ/SQ (subcutaneous), PRN (as needed), QID (four times daily), BID (twice daily), TID (three times daily), NPO (nothing by mouth)

Q3. What do you know about Vital signs abbreviations?

T (temperature), P (pulse), R (respiration rate), BP (blood pressure), SpO2 (peripheral oxygen saturation), BMI (body mass index), Ht (height), Wt (weight)

Q4. What do you know about Chart status abbreviations?

ADM (admission), D/C (discharge — also do not confuse with discontinue), Dx (diagnosis), Sx (symptoms), Tx (treatment), Hx (history), PMH (past medical history)

Q5. What do you know about Care team abbreviations?

MD (medical doctor), DO (doctor of osteopathic medicine), NP (nurse practitioner), PA (physician assistant), RN (registered nurse), LPN (licensed practical nurse), RT (respiratory therapist), PT (physical therapist)

← Previous: C2.4 Diagnostic, Lab & Imaging Terminology

Part of Module 2: Medical Terminology & Body Systems.