ATI RN
Cardiovascular System Exam
1. Which heart chamber receives venous blood returning to the heart via the superior and inferior vena cava?
- A. Right atrium
- B. Left atrium
- C. Right ventricle
- D. Left ventricle
Correct answer: A
Rationale: The correct answer is A: Right atrium. The right atrium is the heart chamber that receives deoxygenated blood returning from the body via the superior and inferior vena cava. The blood enters the right atrium from the vena cava and then passes through the tricuspid valve into the right ventricle. Choices B, C, and D are incorrect because the left atrium receives oxygenated blood from the lungs, the right ventricle pumps blood to the lungs for oxygenation, and the left ventricle pumps oxygenated blood to the body.
2. 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.
3. A nurse in an emergency room is caring for a client who sustained partial-thickness burns to both lower legs, chest, face, and both forearms. Which of the following is the priority action the nurse should take?
- A. Insert an indwelling urinary catheter.
- B. Inspect the mouth for signs of inhalation injuries.
- C. Administer intravenous pain medication.
- D. Draw blood for a complete blood cell (CBC) count.
Correct answer: Inspect the mouth for signs of inhalation injuries.
Rationale: When caring for a client with burns, especially burns to the face and chest, the priority action for the nurse is to inspect the mouth for signs of inhalation injuries. Inhalation injuries can be life-threatening and may not be immediately apparent. Identifying these injuries early allows for prompt intervention and can significantly impact the client's outcomes. While other actions such as pain management and blood tests are important, assessing for inhalation injuries takes precedence due to its critical nature.
4. A nurse is providing teaching to a client who has a new prescription for levothyroxine. Which of the following statements should the nurse include?
- A. Take this medication with food to prevent gastrointestinal upset.
- B. Take this medication in the morning to prevent insomnia.
- C. You may experience weight gain while taking this medication.
- D. You should avoid eating foods that contain iodine.
Correct answer: B
Rationale: The correct answer is B. Instructing the client to take levothyroxine in the morning is important to prevent insomnia, a common side effect of this medication. Choice A is incorrect as levothyroxine should be taken on an empty stomach. Choice C is inaccurate because weight loss, not weight gain, is a potential side effect of levothyroxine. Choice D is not necessary as clients do not need to avoid foods containing iodine while taking levothyroxine.
5. What is the term for the first contact between community members and other levels of health facilities?
- A. Secondary level health care
- B. Tertiary level of care
- C. Primary health care
- D. Intermediate level of care
Correct answer: C
Rationale: Primary health care is the initial point of contact between community members and higher levels of health facilities. It focuses on providing essential, accessible, and affordable health care services to individuals and communities. Primary health care plays a crucial role in promoting health, preventing diseases, and managing common health problems, making it an integral part of the healthcare system.
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