ATI RN
ATI RN Exit Exam
1. A nurse is caring for a client who is receiving a continuous heparin infusion. Which of the following laboratory values should the nurse monitor to evaluate the effectiveness of the therapy?
- A. Serum potassium
- B. Platelets
- C. aPTT
- D. INR
Correct answer: C
Rationale: The correct answer is C: aPTT. Monitoring the activated partial thromboplastin time (aPTT) is crucial when a client is receiving heparin therapy. The aPTT reflects the clotting time and helps assess the effectiveness of heparin in preventing clot formation. Keeping the aPTT within the therapeutic range ensures that the medication is working optimally. Choices A, B, and D are incorrect because serum potassium, platelets, and INR are not direct indicators of heparin's effectiveness or therapeutic range.
2. During Irina's first week of pregnancy, __________.
- A. heart muscles begin to develop
- B. the zygote multiplies and forms a blastocyst
- C. a primitive brain and spinal cord appear
- D. the embryo can move
Correct answer: B
Rationale: During the first week of pregnancy, the zygote (fertilized egg) undergoes rapid cell divisions and forms a blastocyst. This is a crucial stage where the cells differentiate and specialize, setting the foundation for the development of the embryo. It is during this time that the zygote implants itself into the uterine wall, initiating the process of pregnancy. Choices A, C, and D are incorrect because during the first week of pregnancy, the focus is on the initial development and multiplication of the zygote, not on the development of heart muscles, a primitive brain and spinal cord, or the embryo's ability to move.
3. What part of the heart is responsible for starting the electrical impulse to conduct a heart rhythm and contraction of the atria and ventricles?
- A. The Purkinje fibers in the ventricles
- B. The right & left bundle branches
- C. The atrioventricular node
- D. The sinoatrial node in the atrium
Correct answer: D
Rationale: The sinoatrial node (SA node) in the atrium is indeed responsible for initiating the electrical impulse that starts the heart's rhythm. The SA node is known as the heart's natural pacemaker. Choices A, B, and C are incorrect because while the Purkinje fibers, bundle branches, and atrioventricular node play crucial roles in the conduction of the electrical impulse throughout the heart, the SA node is specifically responsible for initiating this impulse.
4. What nursing intervention is best to improve communication with a hearing-impaired client?
- A. Speak slowly and clearly while facing the client
- B. Write down the message
- C. Talk in a regular voice in the good ear
- D. Shout in the impaired
Correct answer: A
Rationale: Speaking slowly and clearly while facing the client improves communication with hearing-impaired clients.
5. A nurse is discussing denture care with the partner of a client who is unable to perform oral hygiene. Which of the following should be included in the discussion?
- A. Floss dentures as part of daily cleaning.
- B. Wipe dentures before storing them in a dry container at night.
- C. Wrap gloved fingers with gauze to remove dentures.
- D. Use a washcloth to clean the denture surfaces.
Correct answer: C
Rationale: The correct answer is C: 'Wrap gloved fingers with gauze to remove dentures.' This method provides a safe and effective way to remove dentures without causing damage. Choice A is incorrect because flossing dentures is not recommended. Choice B is incorrect as it suggests wiping dentures and storing them dry, which is not the best practice. Choice D is incorrect because using a washcloth may not effectively clean all denture surfaces.
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