ATI RN
Physical Exam Cardiovascular System
1. The client is on digoxin and has severe digoxin toxicity. What is the nursing priority action?
- A. Check the potassium level.
- B. Give Digibind as an antidote.
- C. Change the dosing of digoxin to every other day.
- D. Administer a potassium supplement to decrease digoxin toxicity.
Correct answer: B
Rationale: The correct answer is to give Digibind as an antidote in cases of severe digoxin toxicity. Digibind works by binding to digoxin and preventing it from causing further harm. Checking the potassium level (choice A) is important but not the priority when the client has severe toxicity. Changing the dosing to every other day (choice C) is not appropriate in the setting of severe toxicity where immediate action is required. Giving a potassium supplement (choice D) may be needed eventually, but the priority is to administer Digibind to counteract the toxic effects of digoxin.
2. Each statement is true of proteins, except one. Which is the exception?
- A. Proteins are composed of building blocks called amino acids
- B. The classification of the 20 common amino acids is based on the properties of their side chains
- C. The general structure of an amino acid varies considerably
- D. Amino acids polymerize to form long chains called polypeptides
Correct answer: B
Rationale: The correct answer is B. The classification of the 20 common amino acids is not based on the properties of their side chains, but rather on the structure of their amino and carboxyl groups. These groups are consistent among all amino acids, while the side chains, also known as R groups, are what vary and give each amino acid its unique properties. Choice A is correct because proteins are indeed composed of amino acids. Choice C is incorrect because while the side chains of amino acids can vary, the general structure of an amino acid - a central carbon atom bonded to an amino group, a carboxyl group, a hydrogen atom, and a side chain - is consistent. Choice D is correct because amino acids do polymerize to form long chains called polypeptides, which can then fold into complex shapes to form proteins.
3. Which statement by the patient indicates a need for further teaching regarding the treatment of major depressive disorder?
- A. I have been on this antidepressant for 3 days. I understand that the full effect may take weeks to occur.
- B. I am going to ask my nurse practitioner to discontinue my Prozac today and let me start taking a monoamine oxidase inhibitor tomorrow.
- C. I may ask to have my medication changed to Wellbutrin due to the problems I am having being romantic with my wife.
- D. I realize that there are many antidepressants and it might take a while until we find the one that works best for me.
Correct answer: B
Rationale: Choice B indicates a need for further teaching because the patient is planning to switch directly from Prozac, an SSRI, to a monoamine oxidase inhibitor (MAOI) without allowing for a washout period. This abrupt switch poses a risk of serotonin syndrome, which can be life-threatening. It is essential to educate the patient about the importance of consulting healthcare providers before changing medications to prevent potential adverse effects.
4. Which of the following is an example of a Type 1 hypersensitivity reaction?
- A. Anaphylaxis
- B. Indigestion
- C. Beta cell destruction
- D. ABO transfusion reaction
Correct answer: A
Rationale: Anaphylaxis is a classic example of a Type 1 hypersensitivity reaction. In Type 1 hypersensitivity, allergens trigger an immediate immune response mediated by IgE antibodies, leading to the release of histamine and other mediators. This reaction can result in symptoms ranging from mild itching and hives to severe conditions like anaphylaxis, which is a life-threatening emergency. The other options, such as indigestion (choice B), beta cell destruction (choice C), and ABO transfusion reaction (choice D), are not classified as Type 1 hypersensitivity reactions. Indigestion is typically related to gastrointestinal disturbances, beta cell destruction is associated with autoimmune conditions like type 1 diabetes, and ABO transfusion reaction involves antibodies targeting incompatible blood groups, which is a different immune mechanism compared to Type 1 hypersensitivity.
5. Listed below are five categories that identify the responsibilities of the practical nurse manager in personnel management. Which of these categories is most appropriate for the task of 'Recommend awards and promotions'?
- A. Accountability
- B. Personal/professional development
- C. Individual training
- D. Military appearance/physical condition
Correct answer: A
Rationale: The correct answer is A: 'Accountability.' Accountability involves recommending awards and promotions as part of managing personnel. This responsibility revolves around assessing employee performance and recognizing achievements through awards and promotions. Choice B, 'Personal/professional development,' focuses on enhancing employees' skills and knowledge, not specifically related to recommending awards or promotions. Choice C, 'Individual training,' pertains to providing instruction and guidance to improve specific skills, not directly linked to awarding or promoting individuals. Choice D, 'Military appearance/physical condition,' deals with maintaining physical standards and presentation, unrelated to recommending awards and promotions.
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