HESI A2-style practice: math, English, A&P, biology and chemistry: cram pack

Formula sheets, the key method steps for every topic and 18 practice problems, with full solutions at the back.

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1Formulas and methods

Pre-nursing math (entrance exam)

Order of operations
parentheses → exponents → × ÷ (left to right) → + − (left to right)
Fractions
a/b + c/d = (ad + bc)/bd, a/b × c/d = ac/bd, a/b ÷ c/d = a/b × d/c
Percent
p% of N = (p/100)·N; percent = part/whole × 100
Percent change
(new − original)/original × 100
Discount, then tax
price × (1 − d/100) × (1 + t/100)
Proportion
a/b = c/d → ad = bc
Mean, median, mode, range
sum/count; middle of ordered list; most frequent; max − min
Length, capacity, time
1 km = 1000 m, 1 m = 100 cm, 1 ft = 12 in, 1 yd = 3 ft, 1 mi = 5280 ft, 1 gal = 4 qt = 16 cups, 1 h = 60 min
Temperature
°F = °C·9/5 + 32, °C = (°F − 32)·5/9; a change of 1 °C = 1.8 °F
Area
rectangle l·w, triangle ½·b·h, circle π·r²
Perimeter and circumference
rectangle 2l + 2w, circle π·d = 2π·r
Volume
box l·w·h, cylinder π·r²·h; 1000 cm³ = 1 L
Speed
distance ÷ time (time in hours for mph or km/h)

Method

  1. Read the last sentence first: what exactly is asked, and in which unit or form (lowest terms, nearest cent, one decimal place)?
  2. Write the numbers in one form: turn mixed numbers into improper fractions, percents into decimals, and hours and minutes into one unit.
  3. Pick the method: PEMDAS for expressions, a common denominator for adding fractions, part ÷ whole × 100 for percents, cross-multiplying for proportions, inverse operations for equations.
  4. Work one step at a time and write each line down; round only at the very end.
  5. Check the size of the answer with an estimate, and put an equation’s answer back in.

Nursing math & unit conversions

Metric steps
1 kg = 1000 g, 1 g = 1000 mg, 1 mg = 1000 mcg, 1 L = 1000 mL
Weight and length
1 kg = 2.2 lb, 1 lb = 16 oz, 1 in = 2.54 cm, 1 ft = 12 in
Household measures
1 tsp = 5 mL, 1 tbsp = 15 mL, 1 fl oz = 30 mL, 1 cup = 8 fl oz = 240 mL
Temperature
°C = (°F − 32)·5/9, °F = °C·9/5 + 32
24-hour clock
PM hours 1–11: add 12; 12 AM = 00:xx; 12 PM = 12:xx
Dose rate
mcg/min × 60/1000 = mg/h
Laboratory factors
glucose 1 mmol/L = 18 mg/dL; creatinine 1 mg/dL = 88.4 µmol/L; Hb 1 g/dL = 10 g/L

Method

  1. Write the given quantity with its unit and the unit you want.
  2. Pick the equivalent: 1000 between kg, g, mg and mcg or L and mL; 1 kg = 2.2 lb; 1 tsp = 5 mL, 1 tbsp = 15 mL, 1 fl oz = 30 mL, 1 cup = 240 mL.
  3. Write it as a fraction so that the unwanted unit cancels; for a rate, use one fraction per unit that changes.
  4. Check the direction: a smaller unit gives a bigger number.
  5. Round only the final answer, to the precision the question names.

Reading comprehension (entrance exams)

Method

  1. Read the question first so you know what you are looking for.
  2. Skim the passage for its topic and main point; the first or last sentence often states it.
  3. Go back to the exact lines that answer the question.
  4. For inferences, choose the option the clues most strongly support, not one that goes further.
  5. For labels and tables, apply every rule that fits the case and do the small calculation carefully.

Healthcare vocabulary (entrance exams)

Method

  1. Read the whole sentence and look for a context clue: a definition, a contrast, an example or a cause and effect.
  2. Split an unfamiliar word into prefix, root and suffix and translate each part.
  3. Read a medical term from the suffix back to the start (hepat-itis: inflammation of the liver).
  4. Put each option into the sentence and check that the meaning still fits.
  5. Choose the meaning used in this sentence, even if the word has another everyday meaning.

English grammar & language usage (entrance exams)

Method

  1. Find the subject and the verb of the sentence before choosing a form.
  2. Strip away phrases (of the …, along with …) and extra people (you and …) to test agreement and pronoun case.
  3. Check each clause: can it stand alone? Join independent clauses with a comma + conjunction or a semicolon.
  4. Check modifiers and lists: the describing phrase next to its word, items in the same form.
  5. For word choice and register, pick the precise, formal and concise option.

Biology for nursing entrance exams

Method

  1. Name the topic of the question: cell parts, transport, division, DNA and protein synthesis, inheritance, biomolecules, microorganisms or experimental design.
  2. Recall the key rule: A–T and G–C, diffusion from high to low, water moves towards more solute, mitosis keeps and meiosis halves the chromosome number.
  3. For crosses, write the parents’ genotypes, list the gametes and fill a Punnett square before counting.
  4. For experiments, label the independent, dependent and controlled variables, and ask whether the evidence supports or only suggests the conclusion.
  5. Check each option against the question asked, not just whether it is a true statement.

Chemistry for nursing entrance exams

Method

  1. Identify what is given and asked: particles, a formula, a state change, a concentration, a pH or a mass.
  2. Use the periodic table: the atomic number gives protons, the group gives valence electrons and the usual ion charge.
  3. Balance equations with coefficients only, element by element, oxygen and hydrogen last.
  4. For amounts, go mass → moles → mole ratio → moles → mass, and for solutions use M = mol/L and C₁V₁ = C₂V₂.
  5. Remember that pH is logarithmic: one unit is a factor of 10.

2Practice problems

1.Pre-nursing math (entrance exam)Medium

Solve for x: 7x − 18 = −60.

7x − 18 = −60
x =
2.Pre-nursing math (entrance exam)Hard
106 1/91 1/444 2/9

Work out 2 1/2 × 2 4/9. Click the answer in lowest terms.

2 1/2 × 2 4/9
  1. 110
  2. 26 1/9
  3. 31 1/44
  4. 44 2/9
3.Nursing math & unit conversionsMedium
0.24739 mL? mLround to 0.01 mL

Practice exercise (made-up values, not clinical guidance). A dose calculation for a small injection gives 0.24739 mL. The rule in this exercise is that volumes below 1 mL are rounded to the nearest hundredth of a mL. What value x do you record?

0.24739 mL
x = mL
4.Nursing math & unit conversionsHard
1½ tsp · 4/day · 7 d? × 50 mL1 tsp = 5 mL

Practice exercise (made-up values, not clinical guidance). A prescription reads 1½ tsp of an oral suspension every 6 hours for 7 days. The suspension comes in 50 mL bottles. Using 1 tsp = 5 mL, how many whole bottles N must be supplied so the course is complete?

1½ tspevery 6 hours7 days50 mL1 tsp = 5 mL
N =
5.Reading comprehension (entrance exams)Medium

“The FAST test helps people spot a stroke: Face drooping, Arm weakness, Speech difficulty, Time to call emergency services.” What does the letter T stand for?

  1. ATiredness in the arms and legs
  2. BTemperature rising suddenly and sharply
  3. CTime to call emergency services
  4. DTrouble seeing out of one eye
6.Reading comprehension (entrance exams)Hard

“The scientist repeated the experiment five times in different labs and always got the same result.” Why does this strengthen the scientist’s findings?

  1. AThe law requires exactly five repeat tests.
  2. BIt proves the result is true in every case.
  3. CRepeated results make chance or error less likely.
  4. DDifferent labs always use the same equipment.
7.Healthcare vocabulary (entrance exams)Medium

Choose the meaning of the word in bold: “The patient’s respirations were 18 per minute.”

  1. ABreaths
  2. BTemperature readings
  3. CHeartbeats
  4. DBlood pressure readings
8.Healthcare vocabulary (entrance exams)Hard

What does the term haematemesis mean?

  1. ABlood in the stool
  2. BVomiting blood
  3. CBlood in the urine
  4. DCoughing up blood
9.English grammar & language usage (entrance exams)Medium

Choose the correct verb: “Nobody ___ the answer yet.”

  1. Aare knowing
  2. Bhave known
  3. Cknow
  4. Dknows
10.English grammar & language usage (entrance exams)Hard

Which phrase puts the adjectives in the usual English order?

  1. Aa wooden old lovely table
  2. Ban old lovely wooden table
  3. Ca lovely wooden old table
  4. Da lovely old wooden table
11.Human anatomyMedium

Which structure is the main bundle of nerve fibres connecting the left and right cerebral hemispheres?

  1. AInternal capsule
  2. BCerebral peduncle
  3. CCorpus callosum
  4. DFornix
12.Human anatomyHard

A patient with a large aneurysm of the aortic arch develops hoarseness. Which nerve is most likely compressed?

  1. ALeft phrenic nerve
  2. BRight recurrent laryngeal nerve
  3. CExternal laryngeal nerve
  4. DLeft recurrent laryngeal nerve
13.Human physiologyMedium

Mean arterial pressure is approximately equal to:

  1. AStroke volume × total peripheral vascular resistance
  2. BHeart rate × stroke volume
  3. CCardiac output × total peripheral resistance
  4. DCardiac output ÷ heart rate
14.Human physiologyHard

A healthy person stands up quickly after lying down. Which reflex response prevents fainting?

  1. AThe baroreceptor reflex raises heart rate and vasoconstriction
  2. BThe Bainbridge reflex lowers heart rate
  3. CThe chemoreceptor reflex raises breathing rate and arterial oxygen levels
  4. DADH release immediately doubles blood volume
15.Biology for nursing entrance examsMedium

A person with blood type AB has both A and B antigens on the red cells. What kind of inheritance is this?

  1. AIncomplete dominance
  2. BComplete dominance of A over B
  3. CSex-linked inheritance
  4. DCodominance
16.Biology for nursing entrance examsHard

A pesticide that is not broken down is sprayed on crops. Later, hawks at the top of the food chain have much higher levels of it than the insects. Why?

  1. AEach predator eats many prey, so the pesticide builds up at each level
  2. BHawks make the pesticide in their own bodies
  3. CHawks eat the crops directly, so they take in the most pesticide of all
  4. DThe pesticide is broken down faster in insects than in plants
17.Chemistry for nursing entrance examsMedium

A magnesium atom loses two electrons. What is the ion formed?

  1. AMg⁻
  2. BMg⁺
  3. CMg²⁺
  4. DMg²⁻
18.Chemistry for nursing entrance examsHard

Hydrogen peroxide fizzes when poured on a cut because an enzyme in blood breaks it down. What gas is produced, and what type of reaction is it?

  1. AHydrogen, in a single replacement reaction
  2. BCarbon dioxide, in a combustion reaction
  3. CChlorine, in a synthesis reaction
  4. DOxygen, in a decomposition reaction

3Solutions

1.Pre-nursing math (entrance exam)

Answer: x = −6

Solving equations: do the same thing to both sides until x stands alone. Undo operations in reverse order: first undo addition or subtraction, then multiplication or division. Clear parentheses with the distributive property, a(x + b) = ax + ab, and collect the x terms on one side. Check the answer by substituting it back.

Add 18 to both sides.

7x = −42

Divide both sides by 7.

x = −6

Check

7·(−6) − 18 = −60

Answer

x = −6
2.Pre-nursing math (entrance exam)

Answer: 6 1/9

Multiplying and dividing fractions: first turn mixed numbers into improper fractions (2 1/3 = 7/3). To multiply, multiply the numerators and the denominators. To divide, keep the first fraction, change ÷ to ×, and flip the second fraction (multiply by its reciprocal). Cancel common factors and write the result in lowest terms as a mixed number.

Improper fractions

2 1/2 = 5/2
2 4/9 = 22/9

Multiply

5/2 × 22/9 = 110/18

Simplify

110/18 = 6 1/9

Answer

6 1/9
3.Nursing math & unit conversions

Answer: x = 0.25 mL

Rounding: look at the digit just after the place you round to: 5 or more rounds up, 4 or less leaves the digit as it is. Round only the final answer, never the steps. Typical exam rules: volumes of 1 mL or more to the nearest tenth, volumes below 1 mL to the nearest hundredth, drip rates to whole drops and weights to one decimal place; always follow the rule the question states.

Digit in the hundredths place

0.24739 → 4

Only the next digit decides

0.24739 → 7
7 is 5 or more, so round 4 up.
The digits after it (39) are ignored: round once, never step by step.

Round

x = 0.25 mL

Answer

x = 0.25 mL
4.Nursing math & unit conversions

Answer: N = 5

Dimensional analysis: write the given quantity, then multiply by conversion factors written as fractions (for example 60 min/1 h or 1 mg/1000 mcg) so that each unwanted unit appears once on top and once underneath and cancels. When only the wanted unit is left, calculate. Use the equivalents the question gives and round only the final answer.

Total volume

7.5 mL × 4 × 7 = 210 mL

Bottles

210/50 = 4.2 → N = 5

Answer

N = 5
5.Reading comprehension (entrance exams)

Answer: C · Time to call emergency services

Why this is the answer

In FAST, T stands for “Time to call emergency services”, because quick treatment of a stroke is vital.

Answer

C · Time to call emergency services
6.Reading comprehension (entrance exams)

Answer: C · Repeated results make chance or error less likely.

Why this is the answer

When a result is repeated in different settings, it is less likely to be due to chance or a mistake in one lab. It strengthens the finding but does not prove it for every case.

Answer

C · Repeated results make chance or error less likely.
7.Healthcare vocabulary (entrance exams)

Answer: A · Breaths

Why this is the answer

Respirations are breaths; the respiratory rate is the number of breaths per minute.

Answer

A · Breaths
8.Healthcare vocabulary (entrance exams)

Answer: B · Vomiting blood

Why this is the answer

Haematemesis (US: hematemesis) is the vomiting of blood; coughing up blood is haemoptysis.

Answer

B · Vomiting blood
9.English grammar & language usage (entrance exams)

Answer: D · knows

Why this is the answer

“Nobody” is singular, like everybody, somebody and anybody, so it takes the singular verb “knows”.

Answer

D · knows
10.English grammar & language usage (entrance exams)

Answer: D · a lovely old wooden table

Why this is the answer

English adjectives usually follow the order opinion, size, age, shape, colour, origin, material, purpose. “Lovely” (opinion), “old” (age), “wooden” (material) follows that order.

Answer

D · a lovely old wooden table
11.Human anatomy

Answer: C · Corpus callosum

Why this is the answer

The corpus callosum is the largest commissure, linking matching areas of the two hemispheres. The internal capsule carries projection fibres up and down instead.

Answer

C · Corpus callosum
12.Human anatomy

Answer: D · Left recurrent laryngeal nerve

Why this is the answer

The left recurrent laryngeal nerve loops under the aortic arch beside the ligamentum arteriosum. It supplies most laryngeal muscles, so compression causes hoarseness.

Answer

D · Left recurrent laryngeal nerve
13.Human physiology

Answer: C · Cardiac output × total peripheral resistance

Why this is the answer

Pressure = flow × resistance, so MAP ≈ CO × TPR. Changes in either cardiac output or vascular resistance change blood pressure.

Answer

C · Cardiac output × total peripheral resistance
14.Human physiology

Answer: A · The baroreceptor reflex raises heart rate and vasoconstriction

Why this is the answer

Blood pools in the legs and pressure falls; baroreceptors fire less, which increases sympathetic and decreases vagal activity within seconds, raising heart rate and vascular tone.

Answer

A · The baroreceptor reflex raises heart rate and vasoconstriction
15.Biology for nursing entrance exams

Answer: D · Codominance

Why this is the answer

The Iᴬ and Iᴮ alleles are codominant: neither masks the other, and both antigens appear. The O allele (i) is recessive to both.

Answer

D · Codominance
16.Biology for nursing entrance exams

Answer: A · Each predator eats many prey, so the pesticide builds up at each level

Why this is the answer

A stable pesticide is stored in the body rather than excreted. Each organism at a higher level eats many organisms from the level below, so the concentration rises along the food chain. This is how DDT harmed birds of prey.

Answer

A · Each predator eats many prey, so the pesticide builds up at each level
17.Chemistry for nursing entrance exams

Answer: C · Mg²⁺

Why this is the answer

Losing two electrons leaves two more protons than electrons, giving a 2+ charge. Group 2 metals form 2+ ions.

Answer

C · Mg²⁺
18.Chemistry for nursing entrance exams

Answer: D · Oxygen, in a decomposition reaction

Why this is the answer

The enzyme catalase catalyses 2H₂O₂ → 2H₂O + O₂. One compound breaking into simpler substances is decomposition, and the bubbles are oxygen.

Answer

D · Oxygen, in a decomposition reaction

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