ATI RN
ATI Nutrition Practice Test A 2019
1. What does a QRS Complex represent in an ECG reading?
- A. Atrial depolarization
- B. Ventricular repolarization
- C. Ventricular depolarization
- D. End of ventricular depolarization
Correct answer: C: Ventricular depolarization
Rationale: The QRS Complex in an ECG reading represents ventricular depolarization, which is the process of the heart's ventricles preparing to contract by changing the electrical charge in the cell, hence choice 'C' is the correct answer. Choice 'A' is incorrect because atrial depolarization is represented by the P wave in an ECG reading, not the QRS Complex. Choice 'B' is incorrect as ventricular repolarization is depicted by the T wave, not the QRS Complex. Finally, choice 'D' is also incorrect because the QRS Complex is not the end of ventricular depolarization, but the process itself.
2. As a Nurse Manager, DMLM enjoys her staff of talented and self motivated individuals. She knew that the leadership style to suit the needs of this kind of people is called:
- A. Autocratic
- B. Participative
- C. Democratic
- D. Laissez Faire
Correct answer: C
Rationale: Effective nursing care involves comprehensive assessments that address all aspects of a patient's condition, ensuring that interventions are appropriately targeted and outcomes are optimized.
3. What is the term for intestinal wounds associated with Crohn's disease that develop in different areas in the intestine, with normal tissue separating affected regions?
- A. Skip lesions
- B. Fistulas
- C. Fissures
- D. Loop ulcerations
Correct answer: A: Skip lesions
Rationale: Skip lesions are typical characteristics of Crohn's disease, where patches of diseased intestine are interspersed with areas of healthy tissue. This is why option A is the correct answer. Option B, fistulas, are abnormal connections between two body parts, which is not what the question is describing. Option C, fissures, are small tears in the lining of the anus, which also do not fit the description in the question. Option D, loop ulcerations, is not a recognized medical term, making it an incorrect choice.
4. Which factor has been shown to increase the risk of development of atherosclerosis?
- A. Menopause
- B. Age older than 35
- C. Increased levels of arachidonic acid
- D. Elevated HDL cholesterol
Correct answer: A: Menopause
Rationale: The correct answer is A: Menopause. Menopause is associated with an increased risk of atherosclerosis due to hormonal changes that affect lipid profiles and vascular health. Conversely, B: Age older than 35 is not necessarily a risk factor for atherosclerosis on its own, though atherosclerosis risk does generally increase with age. C: Increased levels of arachidonic acid is not specifically linked to atherosclerosis; it's a fatty acid that can be both beneficial and harmful to health depending on its metabolic pathway. D: Elevated HDL cholesterol is actually beneficial rather than harmful because HDL cholesterol is known as 'good' cholesterol that helps to reduce the risk of heart disease and atherosclerosis.
5. Which vitamin is crucial for collagen synthesis and wound healing?
- A. Vitamin C
- B. Vitamin D
- C. Vitamin E
- D. Vitamin K
Correct answer: A
Rationale: The correct answer is Vitamin C. Vitamin C is crucial for collagen synthesis, a process important for wound healing. Collagen is a key protein that helps in wound repair and tissue strength. Vitamin D is primarily known for its role in calcium absorption and bone health, not directly related to collagen synthesis. Vitamin E is an antioxidant that helps protect cells from damage but is not directly involved in collagen synthesis. Vitamin K is essential for blood clotting but does not play a major role in collagen synthesis for wound healing.