ATI TEAS 7
Nursing Leadership and Management
1. She knows that there are external forces that influence changes in his unit. Which of the
- A. Memo from the CEO to cut down on electrical consumption
- B. Demands of the labor sector to increase wages
- C. Low morale of staff in her unit
- D. Exacting regulatory and accreditation standards
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.
2. Which element is used in fire extinguishers to smother flames by displacing oxygen?
- A. Nitrogen
- B. Carbon dioxide
- C. Helium
- D. Argon
Correct answer: B
Rationale: Carbon dioxide extinguishes flames by depriving them of oxygen, preventing the chemical reaction that sustains the fire.
3. A bookshelf has triangular shelves with a base of 40cm and a height of 30cm. The depth of the shelf is 25cm. What is the volume of each shelf?
- A. 3000 cu cm
- B. 3750 cu cm
- C. 5000 cu cm
- D. 7500 cu cm
Correct answer: B
Rationale: Calculate the area of the triangle (1/2 * base * height) and multiply by the depth.
4. A doctor orders 1 gram of a medication to be administered intravenously. The available vial contains 200 milligrams per milliliter. How many milliliters of the solution should be drawn up?
- A. 4 milliliters
- B. 5 milliliters
- C. 10 milliliters
- D. 20 milliliters
Correct answer: B
Rationale: First convert grams to milligrams (1 gram * 1000 milligrams/gram = 1000 milligrams). Then, divide the desired dosage by the concentration per milliliter: 1000 milligrams / 200 milligrams/milliliter = 5 milliliters.
5. What is the main consequence of a malfunctioning thyroid gland that produces abnormally low levels of thyroid hormones?
- A. Increased energy levels and weight loss
- B. Decreased heart rate and body temperature
- C. Enhanced muscle growth and bone development
- D. Faster metabolism and heightened alertness
Correct answer: B
Rationale: The correct answer is B: 'Decreased heart rate and body temperature.' When the thyroid gland produces abnormally low levels of thyroid hormones (hypothyroidism), it can lead to a decrease in metabolic rate, resulting in symptoms such as fatigue, weight gain, and feeling cold. A lower metabolic rate can slow down heart rate and decrease body temperature. The other options (A, C, D) are not characteristic of hypothyroidism. Increased energy levels and weight loss, enhanced muscle growth and bone development, and faster metabolism and heightened alertness are more commonly associated with hyperthyroidism, where the thyroid gland produces excess hormones.
6. What is the process by which muscle tissue wastes away due to disuse or lack of nutrients?
- A. Hypertrophy
- B. Atrophy
- C. Fibrosis
- D. Rigor mortis
Correct answer: B
Rationale: The correct answer is B: Atrophy. Atrophy is the process by which muscle tissue wastes away due to disuse or lack of nutrients. When muscles are not regularly used or do not receive enough nutrients, they can decrease in size and strength. Hypertrophy, on the other hand, refers to the increase in muscle size and strength through exercise and proper nutrition. Fibrosis is the formation of excess fibrous connective tissue in an organ or tissue, leading to scarring. Rigor mortis is a temporary stiffening of muscles that occurs after death. Therefore, in this context, atrophy best describes the wasting away of muscle tissue due to disuse or lack of nutrients.
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