Foundational Knowledge and Anatomy
15.3% of the exam
Two NHA domains combined: Foundational Knowledge and Basic Science (15 scored items) plus Anatomy and Physiology (8 scored items) — 23 of the 150 scored items on your exam. This is the vocabulary layer everything else is built on: the health care system and where a CCMA's scope stops, medical terminology as a decoding skill rather than a memorized list, pharmacology, nutrition and BMI, psychology and grief, the body map, and the chain of infection. Do not read this guide. Work it: read each chunk, then answer the check from memory before you reveal the answer.
1. The system you work in — and where your scope stops
Start with the boundary. NHA tests it in every domain. A CCMA is unlicensed assistive personnel. You act only on delegation from a licensed provider. 1. Certification (NHA) is a voluntary credential you earn and renew. Licensure is state permission to practice. You are certified; you do not hold a state license. 2. You may collect data, perform delegated clinical tasks, and repeat a provider's instructions. 3. You may not diagnose, prescribe, interpret a result for a patient, or set a plan of care. 4. Route boundary: the NHA 2022 test plan has the CCMA preparing and administering medications by nonparenteral routes and by parenteral routes EXCLUDING intravenous (tasks 3B5 and 3B6). Starting an IV or pushing an IV medication is not on your test plan. Settings: inpatient means formally admitted to a facility, typically staying at least overnight; outpatient (ambulatory) means same-day, no admission. A patient-centered medical home coordinates care around one primary provider. An ACO is a provider group accountable for cost and quality. Hospice is comfort-focused care at the end of life. Payment: fee-for-service pays per service performed; value-based pays for outcomes.
2. Word building: decode a term you have never seen
Do not memorize term lists. Decode. Prefix (location, number, or negation) + root (body part) + suffix (condition or procedure). A combining vowel, usually o, joins a root to a suffix that begins with a consonant: gastr + o + megaly. The reversing pairs that flip an answer: - hyper = above, excessive | hypo = below, deficient - inter = between | intra = within - peri = around | para = beside, near, abnormal - a- / an- = without | dys- = painful, difficult | poly- = many High-yield suffixes: -itis inflammation, -ectomy removal, -ostomy new opening, -otomy cutting into, -emia blood condition, -algia pain, -megaly enlargement, -scopy visual exam, -plasty repair, -pathy disease. Plurals: -a to -ae, -us to -i, -um to -a, -is to -es, -ix/-ex to -ices.
3. Pharmacology: classes, routes, rights, schedules, and dangerous abbreviations
Learn drug classes by what the group does, not by brand names. Suffix often tells you the class: -olol beta blocker (lowers heart rate and BP), -pril ACE inhibitor, -statin lowers cholesterol, -cillin antibiotic. Use -azole with care: it commonly marks an antifungal (fluconazole), but metronidazole is an antimicrobial and the -prazole ending is a proton pump inhibitor. Diuretics remove fluid. Hypoglycemics lower blood glucose. Analgesics relieve pain. Anticoagulants slow clotting. Suffix rules are a decoding shortcut, not a guarantee. Two contrasts NHA tests directly: indication is why you give a drug, contraindication is why you must not. A side effect is known, expected, usually tolerable; an adverse effect is harmful, unintended, and reportable. Pharmacokinetics is ADME: absorption, distribution, metabolism, excretion. The rights before every dose: right patient, drug, dose, route, time, and documentation. Some texts add right reason, right response, and the patient's right to refuse — learn the items, not a head count. Document after you give it, never before, and only on a provider's order. Dangerous abbreviations. The Joint Commission's official "Do Not Use" list prohibits, in orders and medication-related documentation: U/u (write unit); IU (write International Unit); Q.D., QD, q.d., qd (write daily); Q.O.D., QOD, q.o.d., qod (write every other day); a trailing zero, X.0 mg (write X mg); a missing leading zero, .X mg (write 0.X mg); and MS, MSO4, MgSO4 (write morphine sulfate or magnesium sulfate). ISMP publishes a separate, far longer error-prone list. Look-alike/sound-alike drug names are their own error source; ISMP tall man lettering uses mixed-case letters to pull confusable names apart. DEA schedules run I (no currently accepted US medical use) through V (lowest abuse potential of the scheduled drugs).
4. Nutrition, BMI, and therapeutic diets
BMI is a screening measure, not a diagnosis (CDC). CDC adult bands: underweight below 18.5; healthy weight 18.5 to under 25; overweight 25 to under 30; obesity 30 and above. Formulas: metric is kg divided by height in meters squared. US units are pounds divided by height in inches squared, then multiplied by 703. Vitamins: fat-soluble are A, D, E, K — stored in liver and fatty tissue, so they can build to toxic levels. Water-soluble are the B complex and vitamin C — excess leaves in urine, so intake must be regular. Therapeutic diets are ordered by the provider, often with a registered dietitian; you reinforce the plan, you do not write it. - Celiac disease: strict lifelong gluten-free, no wheat, barley, or rye (NIDDK). - Diabetes: consistent carbohydrate intake and carbohydrate counting, as set by the provider or dietitian. - Kidney disease: limit sodium, potassium, phosphorus, and often protein. - Clear liquid: only liquids you can see through.
5. Psychology, developmental stages, and grief
Erikson's eight psychosocial stages, each a conflict to resolve: trust vs mistrust (infant), autonomy vs shame and doubt (toddler), initiative vs guilt (preschool), industry vs inferiority (school age), identity vs role confusion (adolescent), intimacy vs isolation (young adult), generativity vs stagnation (middle adult), integrity vs despair (older adult). Sources differ on the exact ages, so learn the order and the life stage, not a number. Kübler-Ross, five stages of grief, DABDA: denial, anger, bargaining, depression, acceptance. They are not a fixed sequence. Patients move back and forth and skip stages. Defense mechanisms: denial (refusing the fact), projection (attributing your own unacceptable feeling, impulse, or blame to someone else), displacement (redirecting emotion onto a safer target), regression (behaving as at a younger age), rationalization (inventing a logical excuse), repression (pushing it out of awareness), compensation (offsetting a weakness). Anger from a grieving patient is a stage, not an attack.
6. The body map, organ systems, and the chain of infection
Anatomical position: standing, facing forward, palms forward. Every direction is described from that position. Planes: sagittal divides left and right (midsagittal gives equal halves); frontal, also called coronal, divides front and back; transverse divides top and bottom. Directions: superior/inferior, anterior (ventral)/posterior (dorsal), medial/lateral, proximal (nearer the trunk)/distal, superficial/deep. Cavities: the dorsal cavity holds the cranial and spinal (vertebral) cavities; the ventral cavity holds the thoracic and abdominopelvic cavities, separated by the diaphragm. Quadrants: RUQ liver and gallbladder, LUQ stomach and spleen, RLQ appendix, LLQ sigmoid colon. Organ systems, eleven: integumentary, skeletal, muscular, nervous, endocrine, cardiovascular, lymphatic/immune, respiratory, digestive, urinary, reproductive. They interact to hold homeostasis — a stable internal state — through feedback loops. Circulation rule: an artery is defined by direction of flow, away from the heart, not by oxygen content. Chain of infection, six links (CDC): infectious agent, reservoir, portal of exit, mode of transmission, portal of entry, susceptible host. Break any one link and transmission stops. What breaks each: agent — disinfection and sterilization; reservoir — cleaning surfaces and equipment, prompt disposal of contaminated items; portal of exit — covering coughs, masking a coughing patient, containing drainage in a dressing; mode of transmission — hand hygiene, PPE, single-use items, transmission-based precautions; portal of entry — aseptic technique, sharps safety, intact dressings; susceptible host — immunization, rest and nutrition, treating underlying conditions. Transmission-based precautions are three: contact, droplet, airborne.
Where people lose points
✗ Certification vs licensure
✓ Certification is a voluntary credential granted by a private body (NHA) that you earn by exam and must renew. Licensure is mandatory permission granted by a state to practice a regulated profession. A CCMA is certified and does not hold a state license to practice. That is exactly why your authority comes from delegation by a licensed provider rather than from your own credential.
✗ Reporting a value vs interpreting a value
✓ Reporting is in scope: you measure, document the exact number, and notify the provider of an abnormal finding. Interpreting is out of scope: telling the patient what the number means for her health, whether it is dangerous, or what to do about it. The trap item usually hands you a value plus a patient asking a reasonable question. The answer is always to route it to the provider.
✗ Giving an injection vs starting an IV
✓ The NHA 2022 test plan has the CCMA preparing and administering medications by nonparenteral routes and by parenteral routes EXCLUDING intravenous. So intramuscular, subcutaneous, and intradermal injections are on your test plan; initiating IV access or pushing an IV medication is not. If an answer choice has you starting an IV, it is wrong for this credential regardless of how clinically sensible it sounds.
✗ inter- vs intra- (and peri- vs para-)
✓ inter- means between two things: intercostal muscles lie between ribs, an interdepartmental memo goes between departments. intra- means inside one thing: an intramuscular injection goes inside the muscle, intravenous goes inside the vein. One letter separates them. Likewise peri- means around (pericardium surrounds the heart) while para- means beside or near (paranasal sinuses sit beside the nose).
✗ Side effect vs adverse effect
✓ A side effect is a known, expected, usually tolerable secondary action of a drug — dry mouth from an antihistamine. An adverse effect is harmful and unintended and must be documented and reported — anaphylaxis, liver injury, a new arrhythmia. The exam pairs this with indication vs contraindication: an indication is the reason to give a drug, a contraindication is a reason it must not be given to this patient.
✗ The TJC official "Do Not Use" list vs the ISMP error-prone list
✓ Know the CONTENTS, not a head count — TJC's official table groups some items on one row (Q.D. with Q.O.D.; trailing zero with missing leading zero), so "how many" varies by how a source counts. The official list prohibits U/u, IU, the Q.D. family, the Q.O.D. family, a trailing zero, a missing leading zero, and MS/MSO4/MgSO4. Items like cc, the microgram symbol, @, and greater-than/less-than symbols sit on a separate TJC list of additional abbreviations identified for possible future inclusion — not the official list. ISMP publishes a much longer error-prone list that includes both plus many more.
✗ Trailing zero vs missing leading zero
✓ A trailing zero is the zero AFTER the decimal: write 1 mg, never 1.0 mg, because a missed decimal point reads as 10 mg. A missing leading zero is the absent zero BEFORE the decimal: write 0.5 mg, never .5 mg, because a missed point reads as 5 mg. Both are tenfold overdose risks in opposite directions. TJC allows a trailing zero only where it is required to show the precision of a reported value — lab results, imaging lesion size, catheter and tube sizes — never in medication orders or medication-related documentation.
✗ Schedule II vs Schedule III/IV refills
✓ Refilling a Schedule II prescription is prohibited outright (21 CFR 1306.12(a)). A practitioner may instead issue multiple sequential prescriptions totaling up to a 90-day supply, each carrying written instructions for the earliest date a pharmacy may fill it (21 CFR 1306.12(b)) — that is not a refill. Schedules III and IV may not be filled or refilled more than six months after the issue date, nor refilled more than five times (21 CFR 1306.22). Schedule I cannot be prescribed at all: no currently accepted US medical use. An emergency ORAL order for a Schedule II is allowed, with the written prescription delivered to the pharmacist within 7 days (21 CFR 1306.11).
✗ Superior vs anterior, and proximal vs distal
✓ Superior means toward the head; anterior means toward the front. Students collapse both into "up." The sternum is anterior to the heart, not superior to it. Proximal and distal are relative to the trunk along a limb, not to the floor: the elbow is proximal to the wrist, the wrist is distal to the elbow. Sitting or lying does not change any of these — all directions are described from standard anatomical position.
✗ "Arteries carry oxygenated blood" vs the pulmonary exception
✓ An artery is defined by direction of flow — away from the heart — not by oxygen content. The pulmonary arteries are the only arteries in the ADULT body that carry deoxygenated blood, from the right ventricle to the lungs. The pulmonary veins are the matching exception, carrying oxygenated blood back to the left atrium. In fetal circulation the umbilical arteries also carry deoxygenated blood, which is why the qualifier "in the adult body" matters.
✗ Alcohol-based hand rub vs soap and water
✓ Alcohol-based hand rub is the CDC default for most clinical moments because it works faster and is less drying. But it does NOT kill Clostridioides difficile spores, and it does not work on visibly soiled hands. In those two situations soap and water is mandatory. Also note the wording trap around respirators: NIOSH APPROVES respirators. An answer choice saying "NIOSH-certified N95" is using the wrong verb.
✗ Sign vs symptom
✓ A sign is objective — you can measure or observe it: a temperature of 101.4 F, a rash, swelling, a blood pressure reading. A symptom is subjective — only the patient can report it: nausea, dizziness, pain, fatigue. Chart symptoms in the patient's own words in quotation marks. Confusing the two shows up in documentation items, where the correct answer separates what you observed from what the patient told you.
✗ Fee-for-service vs value-based payment
✓ Fee-for-service pays a provider for each individual service delivered, so volume drives revenue. Value-based payment ties reimbursement to quality measures and patient outcomes, so results drive revenue. This is why your clinic tracks clinical quality measures and preventive screening compliance in the EHR — under a value-based model those data points affect payment. An ACO is a provider group that accepts joint accountability for the cost and quality of a patient population.
Numbers to memorize
| Weight of these two domains | 15 items (Foundational Knowledge and Basic Science) + 8 items (Anatomy and Physiology) = 23 of 150 scored items |
| Exam structure and passing score (NHA) | 150 scored + 30 unscored pretest = 180 items in 3 hours; scaled 200-500; 390 to pass (about 117 of 150 correct) |
| Medication routes within CCMA scope (NHA 2022 test plan) | nonparenteral routes (task 3B5) and parenteral routes EXCLUDING intravenous (task 3B6). Never diagnose, prescribe, interpret a result for a patient, or set a plan of care |
| BMI formula, metric | weight in kg divided by (height in meters) squared |
| BMI formula, US units | (weight in lb divided by (height in inches) squared) multiplied by 703 |
| CDC adult BMI bands | underweight below 18.5; healthy weight 18.5 to under 25; overweight 25 to under 30; obesity 30 and above. BMI is a screening measure, not a diagnosis |
| Weight and height conversions | 1 inch = 2.54 cm exactly; 1 foot = 12 inches; 1 lb = 16 oz; 1 kg = 2.2 lb (clinical rounding; exact value 2.2046 lb) |
| Volume conversions | 1 tsp = 5 mL; 1 tbsp = 15 mL; 1 L = 1,000 mL; 1 fluid oz = 30 mL (clinical rounding; exact value 29.57 mL) |
| Temperature conversion formulas | F = (C multiplied by 9/5) + 32; C = (F minus 32) multiplied by 5/9 |
| Metric weight and volume prefixes | 1 g = 1,000 mg; 1 mg = 1,000 mcg; 1 kg = 1,000 g; kilo- = 1,000, centi- = 1/100, milli- = 1/1,000, micro- = 1/1,000,000 |
| TJC official "Do Not Use" list — what it prohibits | U/u -> write unit; IU -> write International Unit; Q.D./QD/q.d./qd -> write daily; Q.O.D./QOD/q.o.d./qod -> write every other day; trailing zero (X.0 mg) -> write X mg; missing leading zero (.X mg) -> write 0.X mg; MS, MSO4, MgSO4 -> write morphine sulfate or magnesium sulfate. Applies to orders and medication-related documentation. Learn the contents, not a head count — TJC's table groups Q.D. with Q.O.D. and the two zero rules on shared rows |
| TJC trailing-zero exception | a trailing zero is allowed only where required to show the precision of a reported value: lab results, imaging lesion size, catheter/tube sizes. Never in medication orders or medication-related documentation |
| TJC list for possible future inclusion (not the official list) | greater-than and less-than symbols -> write the words; abbreviations for drug names -> write drug names in full; apothecary units -> use metric; @ -> write at; cc -> write mL; microgram symbol -> write mcg |
| Rights of medication administration | right patient, right drug, right dose, right route, right time, right documentation (documentation happens AFTER administration). Some texts add right reason, right response, and the patient's right to refuse |
| Pharmacokinetics | ADME: absorption, distribution, metabolism, excretion |
| DEA Schedule I | high abuse potential and NO currently accepted medical use in the United States; may not be prescribed, administered, or dispensed for medical use |
| DEA Schedule II prescriptions and refills (21 CFR 1306.11, 1306.12) | refilling is prohibited; written or compliant electronic prescription required; an emergency ORAL order is allowed with the written prescription delivered to the pharmacist within 7 days; up to a 90-day total supply may be issued as multiple sequential prescriptions, each with written instructions for the earliest date a pharmacy may fill it |
| DEA Schedules III and IV refills (21 CFR 1306.22) | shall not be filled or refilled more than 6 months after the date issued, nor refilled more than 5 times; whichever limit is reached first ends it, and a new prescription is then required |
| DEA Schedule V refills | lowest abuse potential of the scheduled drugs. The federal 5-refill / 6-month cap in 21 CFR 1306.22 is written for Schedules III and IV only; Schedule V is refilled as authorized by the prescriber, subject to state law |
| Intramuscular injection (CDC/ACIP) | 90-degree angle; 22-25 gauge needle; site is the deltoid or the anterolateral thigh depending on age. Needle LENGTH is not fixed — it is selected by age and body mass (commonly 1 to 1 1/2 inch for adults in the deltoid, by weight) |
| Subcutaneous injection (CDC/ACIP) | 45-degree angle; 23-25 gauge needle; 5/8 inch length; site is fatty tissue over the anterolateral thigh (infants under 12 months) or fatty tissue over the anterolateral thigh or triceps (12 months and older) |
| Mantoux tuberculin skin test (CDC) | 0.1 mL injected intradermally into the inner forearm with the needle bevel facing up; produces a 6-10 mm wheal; read by a trained health care worker at 48-72 hours |
| Vitamin solubility | fat-soluble: A, D, E, K (stored in liver and fat, can reach toxic levels). Water-soluble: B complex and C (excess excreted in urine) |
| Celiac disease diet (NIDDK) | strict lifelong gluten-free diet; gluten occurs naturally in wheat, barley, and rye |
| Developmental and grief models | Erikson: 8 psychosocial stages, each a conflict, learned by order and life stage (sources differ on exact ages). Kübler-Ross: 5 stages of grief, DABDA (denial, anger, bargaining, depression, acceptance), not a fixed order |
| Anatomical planes | sagittal divides left/right (midsagittal = equal halves); frontal (coronal) divides anterior/posterior; transverse divides superior/inferior |
| Body cavities | dorsal (posterior) = cranial + spinal (vertebral). Ventral (anterior) = thoracic + abdominopelvic, separated by the diaphragm |
| Abdominopelvic divisions | 4 quadrants (RUQ liver/gallbladder, LUQ stomach/spleen, RLQ appendix, LLQ sigmoid colon) or 9 regions |
| Organ systems | 11: integumentary, skeletal, muscular, nervous, endocrine, cardiovascular, lymphatic/immune, respiratory, digestive, urinary, reproductive. They interact to maintain homeostasis |
| Chain of infection (CDC) | 6 links: infectious agent, reservoir, portal of exit, mode of transmission, portal of entry, susceptible host. Breaking any single link stops transmission |
| Transmission-based precautions (CDC) | 3 categories: contact, droplet, airborne. Airborne requires a fit-tested NIOSH-APPROVED N95 or higher respirator plus an airborne infection isolation room at negative pressure |
| Clostridioides difficile hand hygiene (CDC) | soap and water is required; alcohol-based hand rub does NOT kill C. difficile spores. Soap and water is also required whenever hands are visibly soiled |
| The oxygenation exception in circulation | the pulmonary arteries are the only arteries in the ADULT body that carry deoxygenated blood; pulmonary veins are the only veins carrying oxygenated blood. (In fetal circulation the umbilical arteries also carry deoxygenated blood.) |
| Oral liquid dosing standard (FDA / ISMP) | dose oral liquids in milliliters using a calibrated device; household teaspoons and tablespoons vary widely in actual volume and cause dosing errors |
Test yourself
No answers here on purpose — retrieving them is the practice. Drill this domain if any of these stall you.
- A CCMA is certified, not state-licensed. Explain in one sentence what that means for the source of your authority to perform a clinical task.
- List four things a CCMA may never do, regardless of how confident you are in the answer. Then name the one medication route that is explicitly excluded from the CCMA test plan.
- Decode from word parts: polyuria, dysphagia, nephrectomy, hepatomegaly, arthralgia, colostomy, cardiomyopathy.
- Give the plural of vertebra, bronchus, ovum, diagnosis, and appendix.
- Name the drug class for each suffix: -olol, -pril, -statin, -cillin. What group effect does each have? Why is -azole the one you should not trust on its own?
- State everything The Joint Commission's official "Do Not Use" list prohibits and the preferred term for each. Name three items that belong to the separate "possible future inclusion" list instead.
- A prescription reads "morphine .5 mg" and another reads "levothyroxine 25.0 mcg." Identify the error in each and rewrite both correctly.
- How many refills are permitted for a Schedule II prescription and for a Schedule III prescription, and within what time limit? What may a prescriber do instead for a Schedule II drug, and what must each of those prescriptions carry?
- Convert: 165 lb to kg; 5 feet 4 inches to centimeters; 38.6 degrees C to Fahrenheit; 2 tablespoons to mL.
- A patient is 70 inches tall and weighs 158 pounds. Calculate the BMI and name the CDC band. Who may tell the patient what that band means?
- Which vitamins are fat-soluble, which are water-soluble, and which group carries a real risk of toxicity from supplements? Why?
- Name the three grains a patient with celiac disease must avoid, and name the four dietary restrictions common in chronic kidney disease. Who orders a therapeutic diet?
- List Erikson's eight stages in order with the life stage for each. Then list the five Kübler-Ross stages and state why the order is not fixed.
- Define projection, displacement, regression, rationalization, and compensation, and give one clinic example of each.
- Name the three anatomical planes and what each divides. Then place the elbow relative to the wrist and the sternum relative to the heart using correct directional terms.
- Name the two major body cavities and their subdivisions, and state what separates the thoracic from the abdominopelvic cavity.
- Name one key organ found in each of the four abdominal quadrants. Then list the eleven organ systems.
- List the six links of the chain of infection in order, and give one specific clinic action that breaks each one.
- Name the three transmission-based precaution categories. Which requires a fit-tested respirator, and is a respirator NIOSH-approved or NIOSH-certified?
- A patient on contact precautions for C. difficile has just been seen. Which hand hygiene product do you use and why is the other one wrong? Name the other situation that requires the same product.
- Which arteries carry deoxygenated blood in the adult body, and which veins carry oxygenated blood? What defines an artery if not oxygen content?
- Distinguish a sign from a symptom with two examples of each, and state how each should be documented.
- Distinguish fee-for-service from value-based payment, and explain why a value-based model changes what you are asked to document in the EHR.
- State the needle gauge and angle for an intramuscular injection and for a subcutaneous injection. Which of those two has a fixed needle length, and what determines the other?
- For the Mantoux tuberculin skin test: what volume, what route, which way does the bevel face, what size wheal should form, and when is it read?