HESI LPN
Fundamentals HESI
1. A nurse is planning care for a client who has fluid overload. Which of the following actions should the nurse plan to take first?
- A. Evaluate electrolytes
- B. Restrict fluid intake
- C. Administer diuretics
- D. Monitor vital signs
Correct answer: A
Rationale: When a client has fluid overload, the nurse's first action should be to evaluate electrolytes. Electrolyte levels can be significantly affected by fluid imbalances, and assessing them will guide the nurse in determining the appropriate interventions. Restricting fluid intake (choice B) may be necessary but is not the initial priority. Administering diuretics (choice C) should be based on the electrolyte evaluation and overall assessment. Monitoring vital signs (choice D) is essential but does not provide direct information on the client's electrolyte status, which is crucial in managing fluid overload.
2. When admitting a 5-month-old who has vomited 9 times in the past 6 hours, what should the healthcare provider observe for signs of which overall imbalance?
- A. Metabolic acidosis
- B. Metabolic alkalosis
- C. Increased serum hemoglobin levels
- D. Decreased serum potassium levels
Correct answer: B
Rationale: When a 5-month-old infant vomits multiple times, there is a risk of developing metabolic alkalosis due to the loss of stomach acid. Metabolic alkalosis is characterized by elevated pH and bicarbonate levels. It is caused by the loss of hydrogen ions from the body, often through vomiting. Metabolic acidosis (choice A) is unlikely in this scenario because it is more commonly associated with conditions like renal failure or diabetic ketoacidosis. Choice C, increased serum hemoglobin levels, is not typically a direct consequence of vomiting. Choice D, decreased serum potassium levels, may occur with vomiting but is not the primary concern when a patient is vomiting excessively.
3. The healthcare provider prescribes 1,000 ml of Ringer's Lactate with 30 Units of Pitocin to run over 4 hours for a client who has just delivered a 10-pound infant by cesarean section. The tubing has been changed to a 20 gtt/ml administration set. The LPN/LVN plans to set the flow rate at how many gtt/min?
- A. 42 gtt/min
- B. 83 gtt/min
- C. 125 gtt/min
- D. 250 gtt/min
Correct answer: B
Rationale: To calculate the flow rate in drops per minute (gtt/min), the formula is Total volume (mL) ÷ Time (min) ÷ Drop factor (gtt/mL). In this case, 1000 mL ÷ 240 min ÷ 20 gtt/mL = 83 gtt/min. Therefore, setting the flow rate to 83 gtt/min ensures the correct administration of the IV fluids and medication. Choices A, C, and D are incorrect as they do not align with the correct calculation based on the provided information.
4. When administering an otic medication to an older adult client, which action should the nurse take to ensure that the medication reaches the inner ear?
- A. Press gently on the tragus of the client's ear
- B. Pack a small piece of cotton deep into the client's ear canal
- C. Move the client's auricle down and back toward their head
- D. Tilt the client's head backward for 5 minutes
Correct answer: A
Rationale: The correct action to ensure that otic medication reaches the inner ear is to press gently on the tragus. The tragus is a small cartilaginous projection in front of the ear canal. Pressing on it helps to straighten the ear canal, allowing the medication to reach the inner ear. Packing cotton or moving the auricle can obstruct the ear canal and prevent proper medication delivery. Tilting the client's head backward is not necessary and may not facilitate the medication reaching the inner ear as effectively as pressing on the tragus.
5. When changing the client's dressing, which observation should the nurse report to the client's surgeon for a client recovering from an appendectomy for a ruptured appendix with a surgical wound healing by secondary intention?
- A. A halo of erythema on the surrounding skin
- B. Presence of serous drainage
- C. Edema around the wound
- D. Absence of granulation tissue
Correct answer: A
Rationale: A halo of erythema on the surrounding skin may indicate an infection or inflammation of the wound site, which is critical to report to the surgeon. Erythema, redness, and warmth are signs of inflammation that could potentially be a sign of an infected wound. Serous drainage is a common and expected finding in healing wounds, indicating a normal healing process. Edema around the wound might be expected due to the body's response to tissue injury. The absence of granulation tissue in a wound healing by secondary intention may not be an immediate concern as it forms during the later stages of wound healing.
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