ATI RN
ATI Anatomy and Physiology Online Practice
1. Which of the following illustrates a positive feedback mechanism?
- A. Maintaining blood pressure
- B. Uterine contractions during childbirth
- C. Body temperature control
- D. Control of blood sugar
Correct answer: Uterine contractions during childbirth
Rationale: The correct answer is uterine contractions during childbirth. This is an example of a positive feedback mechanism where the initial stimulus (contractions) leads to an increase in intensity and frequency, ultimately resulting in childbirth. In contrast, choices A, C, and D (maintaining blood pressure, body temperature control, and control of blood sugar) are examples of negative feedback mechanisms. These mechanisms work to maintain stability by counteracting any deviations from the set point, rather than amplifying the response like in a positive feedback mechanism.
2. When admitting a client at 33 weeks of gestation with a diagnosis of placenta previa, which action should the nurse prioritize?
- A. Monitor vaginal bleeding
- B. Administer glucocorticoids
- C. Insert an IV catheter
- D. Apply an external fetal monitor
Correct answer: D: Apply an external fetal monitor
Rationale: Placenta previa is a condition where the placenta partially or completely covers the cervix, leading to potential bleeding. When admitting a client with placenta previa, the priority is to assess the fetal well-being. Applying an external fetal monitor helps in continuous monitoring of the fetal heart rate and ensures timely detection of any distress or changes in the fetal status, which is crucial in managing this condition. While monitoring vaginal bleeding is important, identifying fetal well-being takes precedence in this situation.
3. High blood pressure is defined as systolic and diastolic measurements greater than or equal to:
- A. 140 mm Hg and 90 mm Hg, respectively
- B. 150 mm Hg and 80 mm Hg, respectively
- C. 160 mm Hg and 110 mm Hg, respectively
- D. 180 mm Hg and 120 mm Hg, respectively
Correct answer: A
Rationale: High blood pressure, or hypertension, is typically defined as having a systolic pressure of 140 mm Hg or higher and/or a diastolic pressure of 90 mm Hg or higher. Therefore, the correct answer is A. Choice B is incorrect because it suggests a higher systolic measurement than the standard definition. Choice C is incorrect as it provides an even higher systolic measurement and a much higher diastolic measurement. Choice D is also incorrect as it suggests extremely elevated blood pressure values, well above the typical definition of hypertension.
4. Which theoretical viewpoint is most closely associated with Carl Rogers and Abraham Maslow?
- A. Cognitive approach.
- B. Humanism.
- C. Structuralism.
- D. Biological approach.
Correct answer: B
Rationale: The correct answer is B: Humanism. Humanism, associated with Carl Rogers and Abraham Maslow, emphasizes personal growth and self-actualization. The cognitive approach (choice A) focuses on mental processes such as thinking and memory, not specifically associated with Rogers and Maslow. Structuralism (choice C) is a historical school of psychology that aimed to identify the structures of consciousness, not linked to Rogers and Maslow. The biological approach (choice D) emphasizes the influence of biology on behavior, also not directly associated with Rogers and Maslow.
5. A nurse is providing discharge teaching for a group of clients. The nurse should recommend a referral to a dietitian for which of the following clients?
- A. A client who has a prescription for warfarin and states, 'I will need to limit how much spinach I eat.'
- B. A client who has gout and states, 'I can continue to eat anchovies on my pizza.'
- C. A client who has a prescription for spironolactone and states, 'I will reduce my intake of foods that contain potassium.'
- D. A client who has osteoporosis and states, 'I'll plan to take my calcium carbonate with a full glass of water.'
Correct answer: B
Rationale: The correct answer is B. A client with gout who plans to continue consuming anchovies should be referred to a dietitian for proper dietary education. Anchovies are high in purines, which can exacerbate gout symptoms. Choices A, C, and D do not require immediate dietitian referral as the statements made by these clients are appropriate actions regarding their prescribed medications (warfarin and spinach intake, spironolactone and potassium intake, and calcium carbonate and water intake, respectively).
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