ATI TEAS 7
Mathematics
1. A medication order is for 250 micrograms of a drug to be administered subcutaneously. The available syringe measures in milliliters. How many milliliters should the nurse draw up?
- A. 0.00025 milliliters
- B. 0.0025 milliliters
- C. 0.025 milliliters
- D. 0.25 milliliters
Correct answer: B
Rationale: First convert micrograms to milliliters, knowing 1000 micrograms equal 1 milliliter. Divide the desired dosage (250 micrograms) by the conversion factor (1000 micrograms/milliliter) to find the volume needed: 250 micrograms / 1000 micrograms/milliliter = 0.00025 milliliters. However, drawing such a small volume might be inaccurate, so round to the nearest practical measurement, which is 0.0025 milliliters.
2. The artist paints breathtaking landscapes. What is the third-person singular, present tense form of the verb "paint"?
- A. painted
- B. paints
- C. painting
- D. painter
Correct answer: B
Rationale: Verbs change depending on the subject (person) and time (tense).
3. The element with the atomic number 17 is:
- A. Chlorine (Cl)
- B. Nitrogen (N)
- C. Sodium (Na)
- D. Fluorine (F)
Correct answer: A
Rationale: Chlorine (Cl) - Chlorine has 17 protons, corresponding to atomic number 17.
4. The passage implies that achieving energy sustainability requires...
- A. solely relying on renewable energy sources for electricity generation.
- B. a combination of advancements in renewable energy production and management technologies.
- C. prioritizing economic benefits over environmental concerns when making energy choices.
- D. focusing solely on reducing energy consumption without addressing production sources.
Correct answer: B
Rationale: The passage emphasizes the need for both increasing renewable energy and managing its fluctuations, suggesting B as the key to sustainability.
5. A patient's oxygen flow rate is set at 4 liters per minute. How many cubic centimeters of oxygen are delivered per minute?
- A. 400 cubic centimeters
- B. 4,000 cubic centimeters
- C. 40,000 cubic centimeters
- D. 400,000 cubic centimeters
Correct answer: B
Rationale: Remember 1 liter is equal to 1000 cubic centimeters. Multiply the flow rate in liters per minute by the conversion factor: 4 liters/minute * 1000 cm³/liter = 4,000 cubic centimeters/minute.
6. The hormone responsible for regulating blood sugar levels is produced by the:
- A. Pituitary gland
- B. Thyroid gland
- C. Pancreas
- D. Adrenal glands
Correct answer: C
Rationale: The correct answer is C: Pancreas. The hormone responsible for regulating blood sugar levels is insulin, which is produced by the pancreas. Insulin helps to lower blood sugar levels by allowing cells to take in glucose from the bloodstream. The pituitary gland (A) is known for producing various hormones that regulate other endocrine glands, while the thyroid gland (B) produces hormones that regulate metabolism. The adrenal glands (D) produce hormones such as cortisol and adrenaline, but they are not primarily responsible for regulating blood sugar levels.
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