ATI LPN
LPN Pharmacology
1. The nurse is informed during shift report that a client is experiencing occasional ventricular dysrhythmias. The nurse reviews the client's laboratory results, recalling that which electrolyte imbalance could be responsible for this development?
- A. Hypokalemia
- B. Hypernatremia
- C. Hypochloremia
- D. Hypercalcemia
Correct answer: A
Rationale: Hypokalemia, which is low potassium levels, can disrupt the normal electrical activity of the heart and lead to ventricular dysrhythmias. Potassium plays a crucial role in maintaining the heart's rhythm, and a deficiency can result in dangerous heart rhythm abnormalities. Hypernatremia (Choice B), which is high sodium levels, does not directly impact heart rhythm. Hypochloremia (Choice C), which is low chloride levels, is not typically associated with ventricular dysrhythmias. Hypercalcemia (Choice D), which is high calcium levels, is not a common cause of ventricular dysrhythmias.
2. The client is reinforcing instructions for a low-sodium diet. Which statement by the client indicates a need for further teaching?
- A. I will avoid adding salt to my food while cooking.
- B. I will use salt substitutes instead of regular salt.
- C. I can eat as much processed food as I like since it's usually low in sodium.
- D. I will read food labels to check for sodium content.
Correct answer: C
Rationale: The correct answer is C. Processed foods often contain high amounts of sodium, so they should be limited or avoided on a low-sodium diet. Choosing processed foods can lead to increased sodium intake, counteracting the purpose of following a low-sodium diet. Option A shows an understanding of avoiding added salt, Option B suggests using alternatives to regular salt, and Option D indicates a willingness to check food labels for sodium content, all of which are appropriate for a low-sodium diet. Therefore, the client's statement about eating processed foods freely is incorrect and requires further teaching.
3. Prior to a cardiac catheterization, what instruction should the client be reminded of?
- A. You will need to be NPO for 6 to 8 hours before the procedure.
- B. You will not be able to move around during the procedure.
- C. You will be required to lie still for several hours after the test.
- D. You will not have to drink any fluids immediately before the test.
Correct answer: A
Rationale: Being NPO (nothing by mouth) for 6 to 8 hours before a cardiac catheterization is crucial to prevent complications such as aspiration during the procedure. This helps ensure the safety and accuracy of the test results by minimizing the risk of food or liquid in the stomach interfering with the procedure. Choice B is incorrect because the client will need to lie still during the procedure to ensure its accuracy. Choice C is incorrect as the client is typically required to lie flat for a few hours after the test, not several hours. Choice D is incorrect as the client is usually not allowed to drink fluids immediately before the test to prevent complications.
4. A client with a history of angina pectoris reports chest pain after climbing stairs. What should be the nurse's first action?
- A. Administer oxygen.
- B. Administer nitroglycerin.
- C. Sit the client down and rest.
- D. Check the client's blood pressure.
Correct answer: C
Rationale: The correct action for a client experiencing anginal pain, like chest pain after climbing stairs, is to sit the client down and have them rest. Resting reduces myocardial oxygen demand, which can help relieve anginal pain. Administering oxygen or nitroglycerin may be appropriate interventions after the client has been seated and rested. Checking the client's blood pressure is important but not the immediate priority when a client is experiencing anginal pain. Therefore, the first action should be to sit the client down and allow them to rest.
5. A nurse is assessing a client who has a new prescription for enalapril. Which of the following findings is a priority for the nurse to report to the provider?
- A. Frequent urination
- B. Dry cough
- C. Tremors
- D. Dizziness
Correct answer: D
Rationale: The correct answer is D: Dizziness. Dizziness is a sign of hypotension, a potential adverse effect of enalapril. Enalapril is an ACE inhibitor commonly prescribed for hypertension. Hypotension is a serious side effect that can lead to complications such as falls and injuries. Reporting dizziness promptly is crucial to prevent any harm to the client. Choices A, B, and C are not directly associated with enalapril use and are less concerning compared to the potential implications of hypotension indicated by dizziness.
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