ATI RN
ATI Fundamentals Proctored Exam 2024
1. What is the appropriate needle size for insulin injection?
- A. 18G, 1 ½” long
- B. 22G, 1” long
- C. 22G, 1 ½” long
- D. 25G, 5/8” long
Correct answer: D
Rationale: The appropriate needle size for insulin injection is 25G, 5/8” long. This size allows for accurate and comfortable insulin administration in subcutaneous tissue.
2. A secondary immune response differs from the primary immune response in that:
- A. It is more rapid than the primary response and results in higher antibody levels
- B. It is slower than the primary response and doesn't change the antibody levels
- C. It occurs at the same time as the primary response but results in a decrease in antibodies
- D. It only occurs in hyperallergic reactions and results in a decrease in antibodies
Correct answer: A
Rationale: The correct answer is A. A secondary immune response is characterized by being more rapid than the primary response and results in higher antibody levels. This is because memory B cells are already present and can quickly differentiate into plasma cells upon re-exposure to the antigen. Choice B is incorrect because a secondary immune response is faster, not slower, than the primary response, and it does lead to higher antibody levels. Choice C is incorrect because a secondary response does not result in a decrease in antibodies; instead, it leads to an increase. Choice D is incorrect because a secondary immune response is not limited to hyperallergic reactions, and it results in an increase, not a decrease, in antibodies.
3. This is a more accurate indicator of tissue perfusion. It represents the cardiac output in terms of liters per minute per square meter of body surface area. Its normal range is 2.4-4 L/min.
- A. Cardiac Index
- B. Stroke volume
- C. Ejection fraction
- D. Cardiac output
Correct answer: A
Rationale: The correct answer is A: Cardiac Index. Cardiac Index is a measure of cardiac output relative to body surface area, providing a more accurate assessment of tissue perfusion. It is calculated by dividing the cardiac output by the body surface area. The normal range for cardiac index is 2.4-4 L/min/m². Choice B, Stroke volume, refers to the amount of blood ejected by the heart in one contraction and is not adjusted for body surface area. Choice C, Ejection fraction, is the percentage of blood pumped out of the heart's ventricles with each contraction, not adjusted for body surface area. Choice D, Cardiac output, is the total volume of blood pumped by the heart per minute, without considering body surface area.
4. A nurse is caring for a newborn who is large for gestational age (LGA). Which of the following findings should the nurse expect?
- A. Hyperbilirubinemia
- B. Hypoglycemia
- C. Hypercalcemia
- D. Hypothermia
Correct answer: B
Rationale: Newborns who are large for gestational age (LGA) are at risk for hypoglycemia due to increased insulin production. Hyperbilirubinemia (Choice A) is more commonly associated with ABO or Rh incompatibility. Hypercalcemia (Choice C) is not a common finding in LGA newborns. Hypothermia (Choice D) may occur in newborns who are small for gestational age (SGA) due to a lack of subcutaneous fat for insulation, but it is not typically associated with LGA newborns.
5. When trying to facilitate change in the staff, it is necessary to build trust and recognize the need for change. This type of action is known as which of the following, according to Lewin's Force-Field Model?
- A. Moving the system to a new level
- B. Unfreezing the system
- C. Refreezing the system
- D. Institutionalization
Correct answer: B
Rationale: The correct answer is 'Unfreezing the system.' In Lewin's Force-Field Model, unfreezing is the stage where the existing equilibrium is disrupted to motivate participants and prepare them for change. Building trust and recognizing the need for change are essential components of this stage. Choice A, 'Moving the system to a new level,' does not specifically address the initial stage of disruption. Choice C, 'Refreezing the system,' comes after change has been implemented, not before. Choice D, 'Institutionalization,' refers to the stage where the change becomes the new norm, which is different from unfreezing.