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
01020304050607080nh0246810

The line graph shows the number of people in a waiting room every 2 hours, from hour 0 to hour 10. By how much Δ did the value change from hour 0 to hour 4? Use a negative number for a decrease.

Δ =
2.Pre-nursing math (entrance exam)Hard

A box of 30 gloves is shared between three wards in the ratio 2 : 1 : 3. How many gloves x does the first ward get?

302 : 1 : 3
x =
3.Nursing math & unit conversionsMedium
8 lb 14 oz? kg1 lb = 16 oz1 kg = 2.2 lb

Practice exercise (made-up values, not clinical guidance). A newborn weighs 8 lb 14 oz. Using 1 lb = 16 oz and 1 kg = 2.2 lb, find the weight m in kilograms. Round to two decimal places.

8 lb 14 oz1 lb = 16 oz1 kg = 2.2 lb
m = kg
4.Nursing math & unit conversionsHard
1.5 mg/h? mcg/min1 mg = 1000 mcg1 h = 60 min

Practice exercise (made-up values, not clinical guidance). An infusion delivers 1.5 mg/h. Express this dose rate D in mcg/min. Round to one decimal place.

1.5 mg/h1 mg = 1000 mcg1 h = 60 min
D = mcg/min
5.Reading comprehension (entrance exams)Medium

“The new phone is lighter, has a bigger screen and lasts longer on a single charge than the old model. It also costs more.” Which is a disadvantage of the new phone?

  1. AIt costs more.
  2. BIt has a bigger screen.
  3. CIts battery lasts longer.
  4. DIt is lighter.
6.Reading comprehension (entrance exams)Hard

“The writer describes the city at rush hour as ‘a river of cars that hardly moved’.” What does this metaphor suggest?

  1. AThe city has many bridges.
  2. BThe traffic was heavy and slow.
  3. CThe road was flooded with water.
  4. DThe cars were moving very fast.
7.Healthcare vocabulary (entrance exams)Medium

Choose the meaning of the word in bold: “The patient was cooperative during the examination.”

  1. AVery sleepy
  2. BConfused and lost
  3. CWilling to follow instructions
  4. DRefusing all care offered by the staff
8.Healthcare vocabulary (entrance exams)Hard

What does the term endometriosis mean?

  1. ATissue like the uterine lining growing outside the uterus
  2. BSurgical removal of the uterine lining
  3. CCancer of the neck of the uterus
  4. DInflammation of the lining inside the uterus after childbirth
9.English grammar & language usage (entrance exams)Medium

Which is the correct plural of “crisis”?

  1. Acrisises
  2. Bcrisi
  3. Ccrises
  4. Dcrisis’s
10.English grammar & language usage (entrance exams)Hard

Which revision corrects the fragment? “The nurse who works on the third floor.”

  1. AThe nurse, who works on the third floor.
  2. BWho works on the third floor, the nurse.
  3. CThe nurse who works on the third floor, and my aunt.
  4. DThe nurse who works on the third floor is my aunt.
11.Human anatomyMedium

Which is the largest nerve in the human body?

  1. AVagus nerve
  2. BFemoral nerve
  3. CMedian nerve
  4. DSciatic nerve
12.Human anatomyHard

Why is the proximal pole of the scaphoid at risk of avascular necrosis after a waist fracture?

  1. AIts blood supply enters mainly from the distal end
  2. BIt is drained by a single vein that clots easily
  3. CIts only artery runs through the lunate
  4. DIt has no blood supply at all
13.Human physiologyMedium

Which ion enters the cell to cause the depolarisation phase of a typical neuronal action potential?

  1. APotassium (K⁺)
  2. BSodium (Na⁺)
  3. CChloride (Cl⁻)
  4. DCalcium (Ca²⁺)
14.Human physiologyHard

In pernicious anaemia, autoimmune destruction of gastric parietal cells leads to anaemia because:

  1. AGastrin is lost, so the bone marrow is no longer stimulated
  2. BPepsin is lost, so haemoglobin cannot be made
  3. CAcid is lost, so iron is never absorbed in any form
  4. DIntrinsic factor is lost, so vitamin B12 is not absorbed
15.Biology for nursing entrance examsMedium

What happens during telophase of mitosis?

  1. AThe DNA is copied for the next division
  2. BThe sister chromatids are pulled apart
  3. CA nuclear envelope forms around each set of chromosomes
  4. DThe chromosomes line up across the middle of the cell
16.Biology for nursing entrance examsHard

The wings of a bat and the wings of a butterfly are used for flying but have very different structures. What are they called, and what does this show?

  1. AHomologous structures, which have the same bones inside
  2. BVestigial structures, which no longer have a function
  3. CHomologous structures, which were inherited from a shared ancestor
  4. DAnalogous structures, which evolved separately for the same job
17.Chemistry for nursing entrance examsMedium

How does evaporation differ from boiling?

  1. AEvaporation happens only at the surface and at any temperature; boiling happens throughout the liquid at a set temperature
  2. BEvaporation produces a solid, while boiling produces a gas
  3. CEvaporation needs a higher temperature than boiling
  4. DEvaporation happens throughout the liquid at a set temperature; boiling happens only at the surface
18.Chemistry for nursing entrance examsHard

A scuba diver breathes compressed air deep underwater. Why must the diver breathe out while swimming up to the surface?

  1. AOxygen turns to liquid at the surface
  2. BThe water gets warmer near the surface
  3. CThe air in the lungs expands as the outside pressure falls
  4. DThe air in the lungs shrinks as the outside pressure falls

3Solutions

1.Pre-nursing math (entrance exam)

Answer: Δ = 40

Reading charts and tables: read the title, the categories and the scale first. On a bar chart or line graph, follow the top of the bar or the point across to the vertical axis; every gridline is one step of the scale. A pie chart shows parts of a whole: a sector of p% stands for p% of the total and has an angle of p% of 360°.

Read the points

0 h: 30, 4 h: 70

Change

Δ = 70 − 30 = 40

Answer

Δ = 40
2.Pre-nursing math (entrance exam)

Answer: x = 10

Ratios and proportions: a ratio a : b compares two amounts. In a proportion two ratios are equal, a/b = c/d, and you solve it by cross-multiplying: a·d = b·c. To share an amount in the ratio m : n, divide it into m + n equal parts; one share is m parts, the other n parts.

One part

30/6 = 5

Share

x = 2 × 5 = 10

Answer

x = 10
3.Nursing math & unit conversions

Answer: m = 4.03 kg

Household measures and weight: nursing exams use rounded equivalents: 1 teaspoon (tsp) = 5 mL, 1 tablespoon (tbsp) = 15 mL = 3 tsp, 1 fluid ounce (fl oz) = 30 mL = 2 tbsp, and 1 cup = 8 fl oz = 240 mL. For weight, 1 kg = 2.2 lb and 1 lb = 16 oz; for length, 1 inch = 2.54 cm. Set the conversion up so that the unit you do not want cancels out.

Ounces to pounds

14 oz/16 = 0.875 lb
8 + 0.875 = 8.875 lb

Pounds to kilograms

m = 8.875/2.2 = 4.034 ≈ 4.03 kg

Answer

m = 4.03 kg
4.Nursing math & unit conversions

Answer: D = 25 mcg/min

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.

Set up the chain

D = 1.5 mg/h × (1000 mcg/1 mg) × (1 h/60 min)

Calculate

D = 1500/60 = 25 mcg/min

Answer

D = 25 mcg/min
5.Reading comprehension (entrance exams)

Answer: A · It costs more.

Why this is the answer

Being lighter, bigger-screened and longer-lasting are advantages. A higher price is the disadvantage the passage mentions.

Answer

A · It costs more.
6.Reading comprehension (entrance exams)

Answer: B · The traffic was heavy and slow.

Why this is the answer

Comparing the traffic to a river shows how many cars there were, and “hardly moved” shows it was slow. There was no real water.

Answer

B · The traffic was heavy and slow.
7.Healthcare vocabulary (entrance exams)

Answer: C · Willing to follow instructions

Why this is the answer

Cooperative means willing to work with others and help.

Answer

C · Willing to follow instructions
8.Healthcare vocabulary (entrance exams)

Answer: A · Tissue like the uterine lining growing outside the uterus

Why this is the answer

Endometriosis is a condition in which tissue similar to the endometrium grows outside the uterus; endometritis is inflammation of the lining.

Answer

A · Tissue like the uterine lining growing outside the uterus
9.English grammar & language usage (entrance exams)

Answer: C · crises

Why this is the answer

Nouns ending in -is form the plural by changing -is to -es: crisis → crises, analysis → analyses, diagnosis → diagnoses.

Answer

C · crises
10.English grammar & language usage (entrance exams)

Answer: D · The nurse who works on the third floor is my aunt.

Why this is the answer

“Who works” belongs to a relative clause, so the subject “The nurse” still needs its own verb. A adds the main verb “is”.

Answer

D · The nurse who works on the third floor is my aunt.
11.Human anatomy

Answer: D · Sciatic nerve

Why this is the answer

The sciatic nerve (L4–S3) leaves the pelvis through the greater sciatic foramen and supplies the hamstrings and all the muscles below the knee. Skin on the inner side of the leg is supplied by the saphenous nerve instead.

Answer

D · Sciatic nerve
12.Human anatomy

Answer: A · Its blood supply enters mainly from the distal end

Why this is the answer

Branches of the radial artery enter the scaphoid mainly distally and flow backwards. A fracture through the waist can cut off the proximal pole, causing avascular necrosis.

Answer

A · Its blood supply enters mainly from the distal end
13.Human physiology

Answer: B · Sodium (Na⁺)

Why this is the answer

Voltage-gated Na⁺ channels open and Na⁺ rushes in, depolarising the membrane. K⁺ outflow then repolarises it.

Answer

B · Sodium (Na⁺)
14.Human physiology

Answer: D · Intrinsic factor is lost, so vitamin B12 is not absorbed

Why this is the answer

Parietal cells secrete intrinsic factor, needed for B12 absorption in the terminal ileum. B12 deficiency impairs DNA synthesis and causes megaloblastic anaemia.

Answer

D · Intrinsic factor is lost, so vitamin B12 is not absorbed
15.Biology for nursing entrance exams

Answer: C · A nuclear envelope forms around each set of chromosomes

Why this is the answer

In telophase the chromosomes arrive at the poles and uncoil, and a new nuclear envelope forms around each set. Cytokinesis then completes the division into two cells.

Answer

C · A nuclear envelope forms around each set of chromosomes
16.Biology for nursing entrance exams

Answer: D · Analogous structures, which evolved separately for the same job

Why this is the answer

Analogous structures have similar functions but evolved independently in unrelated groups, a process called convergent evolution. Homologous structures share an origin, even if their functions differ.

Answer

D · Analogous structures, which evolved separately for the same job
17.Chemistry for nursing entrance exams

Answer: A · Evaporation happens only at the surface and at any temperature; boiling happens throughout the liquid at a set temperature

Why this is the answer

In evaporation, fast-moving surface molecules escape at any temperature. In boiling, vapour bubbles form inside the liquid once its vapour pressure equals the outside pressure.

Answer

A · Evaporation happens only at the surface and at any temperature; boiling happens throughout the liquid at a set temperature
18.Chemistry for nursing entrance exams

Answer: C · The air in the lungs expands as the outside pressure falls

Why this is the answer

Water pressure decreases on the way up, so the gas in the lungs expands. If the diver holds their breath, the expanding air can over-stretch and injure the lungs.

Answer

C · The air in the lungs expands as the outside pressure falls

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