TEAS practice test: ATI TEAS 7 practice questions and TEAS test prep

B. Aorta

The left ventricle is the systemic pump, and its outflow tract is the aorta, which carries oxygenated blood to the whole body. Option A is the trap that catches most people, because the pulmonary artery is also an artery leaving a ventricle, but it leaves the right ventricle and carries deoxygenated blood to the lungs. It is also the exception to the rule students memorize, that arteries carry oxygenated blood, which is why it stays confusing. Option C, the pulmonary vein, returns oxygenated blood from the lungs into the left atrium, so it feeds the left side rather than drains it. Option D drains deoxygenated blood from the upper body into the right atrium. Trace the full circuit once and these questions stop being memory work: right atrium, right ventricle, pulmonary artery, lungs, pulmonary vein, left atrium, left ventricle, aorta.

C. Urinary system

Both the lungs and the kidneys regulate pH, so the question turns on the word bicarbonate. The kidneys reabsorb filtered bicarbonate and generate new bicarbonate, and they excrete hydrogen ions, which is the renal half of acid-base control. Option A is the strongest distractor because the respiratory system genuinely does regulate pH, but it does so by changing carbon dioxide through the rate and depth of breathing, not by handling bicarbonate. The practical difference the TEAS likes to test is speed and duration: respiratory compensation acts within minutes but cannot fully correct, while renal compensation takes hours to days and can. Option B plays essentially no direct role, and option D influences the process indirectly through aldosterone rather than performing it.

C. Skeletal muscle

Two properties are being tested at once and the answer must satisfy both. Skeletal muscle is striated because its actin and myosin are arranged in regular sarcomeres, and it is voluntary because it is controlled by somatic motor neurons. Option D is the answer designed to catch anyone who reads only the word striated, since cardiac muscle is genuinely striated but is involuntary, driven by the sinoatrial node rather than by conscious control. Option B fails the same test on its own. Option A fails both halves: smooth muscle is neither striated nor voluntary, and it lines the hollow organs and blood vessels. A clean way to hold it is that only one of the three tissues is voluntary, and it is the one attached to bone.

D. 1,000 times

The pH scale is logarithmic, so each whole unit represents a tenfold change in hydrogen ion concentration. Three units of difference means 10 times 10 times 10, which is 1,000. Option A is what you get by subtracting, and it is the single most common error on this question type because subtraction feels natural on a numbered scale. Options B and C are partial applications of the rule, multiplying once or twice instead of three times. Getting comfortable with the logarithmic idea pays off beyond this question: the same reasoning explains why a small drop in blood pH is a medical emergency, since blood held between 7.35 and 7.45 tolerates far less variation in actual hydrogen ion concentration than the narrow-looking numbers suggest.

B. 2 tablets

Convert before you divide, which is the discipline the whole TEAS math section rewards. There are 1,000 milligrams in a gram, so 0.5 g is 500 mg, and 500 divided by 250 gives 2 tablets. Option C is what you get by treating 0.5 g as 1,000 mg, and option A comes from dividing before converting. The reason this question style appears so often is that it mirrors a real dosing error: mixing units is one of the most frequent causes of medication mistakes in practice, and nursing programs use the TEAS partly to screen for people who convert carefully under time pressure. Write the conversion down rather than doing it mentally, because the arithmetic here is easy and the unit handling is where marks are actually lost.

B. 80%

Divide the part by the whole and convert: 36 divided by 45 is 0.8, which is 80%. A faster route without long division is to simplify the fraction first, since 36 over 45 reduces to 4 over 5 by dividing both by 9, and 4 over 5 is a fraction worth knowing on sight as 80%. That habit matters on the TEAS because the math section is timed tightly and the calculator, while provided, costs keystrokes. The distractors are all plausible round percentages, so estimating loosely will not separate them: 75% would be 33.75 beds and 90% would be 40.5, neither of which is a whole bed, which is itself a quick sanity check when you are unsure.

B. The patient was stable; the family was relieved.

A semicolon joins two independent clauses that could each stand alone as a sentence, and that is exactly what option B does. Option A fails because stable and alert is not an independent clause and because the coordinating conjunction and is doing the joining already, which would call for a comma or nothing at all. Option C fails for the same structural reason: because the treatment worked is a subordinate clause, so a comma or no punctuation is correct there. Option D is the most tempting wrong answer because a list is involved, but introducing a list is the colon's job, not the semicolon's. The one exception worth knowing is that semicolons do separate items in a complex list when the items themselves contain commas, which is not the case here.

C. The protocol involves a tradeoff between safety and time

The sentence structure gives the answer before any content does. Although signals a concession, setting up two facts that pull in opposite directions: a genuine benefit and a genuine cost. That is the definition of a tradeoff. Options A and D both overreach, and overreaching is the classic TEAS reading error. Nothing in the sentence recommends abandoning anything, and reporting that something takes longer is not the same as opposing it, still less opposing it on principle. Option B contradicts the sentence outright, since the reduction in infection rates is stated as fact. The reliable technique for this question type is to stay inside what the text supports and treat any answer containing a judgment the author did not make as wrong, however reasonable that judgment sounds.