ATI RN
Human Growth and Development Exam 1
1. Which statement is supported by research on newborn taste preferences?
- A. Newborns cannot distinguish basic tastes.
- B. Not until 4 months do babies prefer a salty taste to plain water.
- C. Newborns prefer the taste of formula to breast milk.
- D. Unlike adults, babies relax their facial muscles in response to sour tastes.
Correct answer: B
Rationale: Research on newborn taste preferences has found that not until around 4 months of age do babies start to show a preference for a salty taste over plain water. This indicates that newborns do have some ability to distinguish tastes, contrary to the statement in option A. The statement in option C that newborns prefer the taste of formula to breast milk is not supported by research on newborn taste preferences. Option D, stating that babies relax their facial muscles in response to sour tastes, is also not a supported statement regarding newborn taste preferences.
2. A client with active tuberculosis is prescribed isoniazid, rifampin, pyrazinamide, and ethambutol. Which statement by the client indicates an understanding of the teaching?
- A. I can substitute one medication for another if I run out because they all fight infection.
- B. I will wash my hands each time I cough.
- C. I am glad I don't have to have any more sputum specimens.
- D. I don't need to worry about where I go once I start taking my medications.
Correct answer: B
Rationale: The correct statement indicating understanding of tuberculosis medication regimen is 'I will wash my hands each time I cough.' This statement shows knowledge of infection control practices to prevent the spread of tuberculosis. Washing hands after coughing helps in reducing the transmission of the disease to others. The other options are incorrect. Option A is incorrect as each medication in the regimen has a specific role, and substituting one for another can compromise the effectiveness of treatment. Option C is incorrect as obtaining sputum specimens is essential for monitoring treatment response. Option D is incorrect as the client should still adhere to infection control measures and avoid exposing others to tuberculosis.
3. Positive feedback mechanisms usually result in
- A. changes returning values away from a set point.
- B. stable conditions around a set point.
- C. unstable conditions.
- D. long-term changes.
Correct answer: unstable conditions.
Rationale: Positive feedback mechanisms usually result in unstable conditions. In a positive feedback loop, the output enhances or amplifies the changes that are occurring, leading to a deviation from the initial set point. Therefore, positive feedback does not bring values back towards the set point (Choice A). Choice B is incorrect because positive feedback does not promote stability around a set point. Choice D is also incorrect as positive feedback mechanisms typically do not lead to long-term changes; instead, they intensify the initial change, causing instability.
4. The parent of a 3-month-old infant is concerned because the infant is not able to sit independently. How should the nurse respond to this parent's concern?
- A. Sitting ability and the age of first tooth eruption are not correlated.
- B. Most infants sit steadily at 4 months.
- C. Most infants sit steadily at 3 months.
- D. Most infants do not sit steadily until 6-8 months.
Correct answer: D
Rationale: The correct answer is D because sitting steadily typically occurs closer to 6-8 months of age, not 3 or 4 months. Choice A is incorrect because sitting ability and the age of first tooth eruption are not related. Choice B and C are incorrect as most infants do not sit steadily at 3 or 4 months, and it is more common for infants to achieve this milestone around 6-8 months.
5. Which of the following is a common characteristic of a high reliability organization (HRO)?
- A. Flexibility
- B. Reluctance to simplify
- C. Preoccupation with failure
- D. Deference to expertise
Correct answer: C
Rationale: A common characteristic of a high reliability organization (HRO) is a preoccupation with failure. HROs focus on identifying and addressing potential failure points to prevent errors and maintain high levels of safety and reliability. This mindset helps them anticipate and mitigate risks proactively, leading to better outcomes and performance. Choices A, B, and D are incorrect. While flexibility, reluctance to simplify, and deference to expertise may be important in various contexts, they are not the primary defining characteristics of a high reliability organization. The core focus of HROs is on continuously monitoring for potential failures and working to prevent them.
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