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Nursing Elites

ATI TEAS 7

Scientific Reasoning

1. A new medication claims to reduce allergy symptoms by 90%. A study is conducted where 100 participants with allergies take the medication, and 90 report symptom reduction. Should this be enough evidence to recommend the medication for everyone?

Correct answer: C

Rationale: : Comparing the medication group to a group receiving a placebo (inactive substance) would help isolate the medication's true effect and avoid attributing symptom reduction to other factors.

2. The free edges of your fingernails and toenails are technically called the:

Correct answer: D

Rationale: The free edges of your fingernails and toenails are the parts that extend beyond the fingertip or toe. These edges are commonly referred to simply as the "free edge" because they are not attached to the skin. The lunula is the white crescent moon shape at the base of the nail, the matrix is the area under the nail where new nail cells are produced, and the hyponychium is the skin under the free edge of the nail. Therefore, the correct answer is D.

3. Bradycardia refers to a heart rate that is:

Correct answer: D

Rationale: The correct answer is D. Bradycardia refers to an abnormally slow heart rate, typically defined as being less than 60 beats per minute (bpm). A heart rate of 60-100 bpm is considered normal, not bradycardia. Choices B and C incorrectly describe elevated heart rates, which are not characteristic of bradycardia. Therefore, option D is the most accurate description of bradycardia as it signifies a heart rate that is slower than normal.

4. What information can be obtained directly from the element's atomic number?

Correct answer: B

Rationale: The atomic number of an element represents the number of protons in the nucleus of an atom. This number determines the element's unique identity and its position on the periodic table. The atomic mass (option A) is not directly determined by the atomic number but is a weighted average of the isotopes of an element. The position on the periodic table (option C) is directly related to the atomic number, as elements are arranged in order of increasing atomic number. The chemical properties of an element (option D) are influenced by the number of protons in the nucleus, which is determined by the atomic number.

5. A lampshade consists of a cylindrical base (diameter 20cm, height 10cm) and a hemispherical top (same diameter as the base). What is its total surface area?

Correct answer: D

Rationale: Calculate the surface area of the cylinder (base + lateral surface) and the hemisphere (half of a sphere's surface area). Add both areas to find the total surface area.

6. An element with atomic number 26 and mass number 56 is most likely to be:

Correct answer: A

Rationale: Iron (Fe) - Fe-56 has 26 protons and aligns with the given atomic number and mass number.

Similar Questions

An element with atomic number 26 and mass number 56 is most likely to be:
12 is a/an:
The longest bone in the human body is the:
What is the role of DNA in evolution?
The number of protons in an atom determines its:
The ability of optical fibers to transmit light signals around bends is primarily due to:

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