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Nursing Elites

ATI TEAS 7

Anatomy

1. The hormone responsible for regulating blood sugar levels is produced by the:

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.

2. She knows that there are external forces that influence changes in his unit. Which of the

Correct answer: A

Rationale: The correct answer is option A: 'Memo from the CEO to cut down on electrical consumption.' This choice represents an external force that can influence changes in the unit by setting a directive from top management to reduce electricity usage, impacting operations and decisions within the unit. While options B, C, and D may also affect the unit to some extent, they are not as directly tied to external influences as the CEO's memo. The demands of the labor sector (option B) and low staff morale (option C) are internal factors, while regulatory and accreditation standards (option D) are more overarching guidelines rather than specific external forces impacting the unit. Therefore, the most direct and relevant external force in this scenario is the directive from the CEO, making option A the correct choice.

3. Half-life refers to the characteristic time it takes for:

Correct answer: D

Rationale: The correct answer is D: An isotope to decay by half of its initial quantity. The half-life of a substance is the time it takes for half of the initial quantity of radioactive atoms to decay. This is a characteristic property of each radioactive isotope and is used to determine the rate of decay of a substance. Option A is incorrect because radioactive intensity does not completely disappear in half-life, it only decreases by half. Options B and C are unrelated to the concept of half-life and do not accurately describe its definition.

4. What phenomenon explains the bending of light as it passes around an obstacle or through an aperture?

Correct answer: c

Rationale: Diffraction refers to the bending of light waves as they encounter an obstacle or pass through an aperture, causing the light to spread out.

5. Which of the following is the main organ responsible for absorbing nutrients?

Correct answer: B

Rationale: Rationale: The small intestine is the main organ responsible for absorbing nutrients from the food we eat. It is where the majority of digestion and absorption of nutrients such as carbohydrates, proteins, fats, vitamins, and minerals occurs. The inner lining of the small intestine is covered in tiny finger-like projections called villi, which increase the surface area available for nutrient absorption. The stomach plays a role in breaking down food into smaller particles, but the actual absorption of nutrients primarily takes place in the small intestine. The large intestine mainly absorbs water and electrolytes, while the pancreas produces digestive enzymes and hormones but is not primarily responsible for absorbing nutrients.

6. If 3 nurses can care for 15 patients, how many nurses are needed for 25 patients?

Correct answer: B

Rationale: 3 nurses / 15 patients = x nurses / 25 patients. Solve for x.

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