HESI RN
HESI RN Medical Surgical Practice Exam
1. The nurse is caring for a newly admitted patient who will receive digoxin to treat a cardiac dysrhythmia. The patient takes hydrochlorothiazide (HydroDIURIL) and reports regular use of over-the-counter laxatives. Before administering the first dose of digoxin, the nurse will review the patient’s electrolytes with careful attention to the levels of which electrolytes?
- A. Calcium and magnesium
 - B. Sodium and calcium
 - C. Potassium and chloride
 - D. Potassium and magnesium
 
Correct answer: D
Rationale: Before administering digoxin, the nurse must review the patient's electrolyte levels, focusing on potassium and magnesium. Hypomagnesemia, similar to hypokalemia, can enhance the action of digitalis and lead to digitalis toxicity. Laxatives and diuretics, like hydrochlorothiazide, can deplete both potassium and magnesium. Therefore, monitoring these electrolytes is crucial to prevent potential adverse effects associated with digoxin therapy. Choice A (Calcium and magnesium) is incorrect because calcium levels are not specifically mentioned as crucial for digoxin therapy. Choice B (Sodium and calcium) is incorrect as sodium is not typically monitored in relation to digoxin therapy. Choice C (Potassium and chloride) is incorrect because although potassium is vital, chloride is not typically associated with digoxin therapy.
2. Which information about mammograms is most important to provide a post-menopausal female client?
- A. Breast self-examinations are not necessary if annual mammograms are obtained.
 - B. Radiation exposure is minimized by shielding the abdomen with a lead-lined apron.
 - C. Yearly mammograms should be done regardless of previous normal screenings.
 - D. Women at high risk should have annual routine and ultrasound mammograms.
 
Correct answer: C
Rationale: The most important information to provide a post-menopausal female client regarding mammograms is that yearly mammograms should be done regardless of previous normal screenings. It is crucial for post-menopausal women to continue regular mammograms as they are at a higher risk for breast cancer. Option A is incorrect as breast self-examinations are still recommended in addition to mammograms. Option B is not the most important information compared to the importance of regular mammograms. Option D is not the most important advice for all post-menopausal females but specifically for those at high risk, indicating a more targeted approach.
3. In the staging process of Hodgkin's disease, what does Stage I indicate?
- A. Involvement of a single lymph node.
 - B. Involvement of two or more lymph nodes on the same side of the diaphragm.
 - C. Involvement of lymph node regions on both sides of the diaphragm.
 - D. Involvement of diffuse disease of one or more extralymphatic organs.
 
Correct answer: A
Rationale: In the staging process of Hodgkin's disease, Stage I signifies the involvement of a single lymph node. This stage indicates localized disease with the disease being limited to a single lymph node or a group of adjacent nodes. Choices B, C, and D are incorrect because they describe more extensive involvement of lymph nodes, both sides of the diaphragm, or extralymphatic organs, which would correspond to higher stages in the staging system.
4. The charge nurse of the medical-surgical unit is making staff assignments. Which staff member should be assigned to a client with chronic kidney disease who is exhibiting a low-grade fever and a pericardial friction rub?
- A. Registered nurse who just floated from the surgical unit
 - B. Registered nurse who just floated from the dialysis unit
 - C. Registered nurse who was assigned the same client yesterday
 - D. Licensed practical nurse with 5 years of experience on this floor
 
Correct answer: C
Rationale: The client is exhibiting symptoms of pericarditis, which can occur with chronic kidney disease. Continuity of care is crucial to assess subtle changes in clients' conditions. Therefore, the registered nurse (RN) who previously cared for this client should be assigned again. Float nurses may lack knowledge of the unit and its clients, potentially leading to oversight of critical details. The licensed practical nurse, while experienced, may not possess the advanced assessment skills and education level of an RN to effectively evaluate and manage pericarditis in this client.
5. A client who has heart failure is admitted with a serum potassium level of 2.9 mEq/L. Which action is most important for the nurse to implement?
- A. Administer 20 mEq of potassium chloride.
 - B. Initiate continuous cardiac monitoring.
 - C. Arrange a consultation with the dietitian.
 - D. Educate about the side effects of diuretics.
 
Correct answer: B
Rationale: Hypokalemia, defined as a serum potassium level below the normal range of 3.5 to 5 mEq/L, can lead to changes in myocardial irritability and ECG waveform, potentially causing life-threatening dysrhythmias. Therefore, the priority action for the nurse is to initiate continuous cardiac monitoring to promptly detect any abnormal heart rhythms or ventricular ectopy. This monitoring is crucial for assessing the impact of potassium replacement therapy on the cardiac rhythm and ensuring the safety of the client. While administering potassium chloride is important for correcting the hypokalemia, it should occur after cardiac monitoring is in place. Consulting with a dietitian and educating about diuretic side effects are relevant aspects of care but are not the immediate priority in this situation where cardiac monitoring takes precedence for timely intervention.
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