TEAS Challenge

Test your mastery with 10 advanced multiple-choice questions

Question 1

A nurse administers a medication dosage of 0.000125 grams. How is this expressed in scientific notation?

A)1.25 × 10⁻⁴ g

B)1.25 × 10⁴ g

C)12.5 × 10⁻⁵ g

D)0.125 × 10⁻³ g

Question 2

A patient's fluid intake is 2.5 × 10³ mL in a day. Their output is 1.8 × 10³ mL. What is the difference in mL, expressed in proper scientific notation?

A)7 × 10² mL

B)7 × 10³ mL

C)0.7 × 10³ mL

D)4.3 × 10³ mL

Question 3

A lab sample has a volume of 2.0 × 10⁻² liters. If the sample is diluted by a factor of 100, what is the new volume?

A)2.0 × 10⁻⁴ L

B)2.0 × 10⁰ L

C)2.0 × 10⁻¹ L

D)2.0 × 10⁴ L

Question 4

A patient weighs 150 lbs. To convert this to kilograms, you multiply by approximately 0.45. Which of the following is the closest weight in kilograms, expressed in scientific notation?

A)6.75 × 10¹ kg

B)6.75 × 10² kg

C)1.5 × 10² kg

D)4.5 × 10⁻¹ kg

Question 5

A certain bacterium measures 2 × 10⁻⁶ meters in length. A human hair is about 1 × 10⁻⁴ meters in diameter. How many times larger is the diameter of the hair than the length of the bacterium?

A)50 times

B)200 times

C)500 times

D)2 times

Question 6

A medication is to be administered at a rate of 5 × 10⁻³ g/min. How many grams are administered in an hour?

A)3 × 10⁻¹ g

B)3 × 10⁰ g

C)3 × 10⁻² g

D)8.33 × 10⁻⁵ g

Question 7

A patient's platelet count is 1.5 × 10⁵ cells/µL. A healthy range is 150,000 to 450,000 cells/µL. Which of the following is true?

A)The patient's count is below the normal range.

B)The patient's count is within the normal range.

C)The patient's count is above the normal range.

D)The patient's count is exactly at the minimum of the normal range.

Question 8

What is the result of (4.2 × 10⁷) + (3.9 × 10⁶)?

A)4.59 × 10⁷

B)8.1 × 10⁷

C)4.59 × 10⁶

D)8.1 × 10¹³

Question 9

A single drop of a solution contains 5.0 × 10⁹ viral particles. If a patient receives a dose containing 200 drops, how many viral particles are in the dose?

A)1.0 × 10¹²

B)1.0 × 10¹¹

C)1.0 × 10¹⁰

D)1.0 × 10⁹

Question 10

Simplify the following expression: (6 × 10⁸) / (3 × 10⁻²)

A)2 × 10⁶

B)2 × 10¹⁰

C)2 × 10⁻¹⁰

D)2 × 10⁻⁶

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