HESI LPN
Adult Health 1 Final Exam
1. The nurse is preparing to administer a subcutaneous injection of heparin. What is the correct angle of insertion?
- A. 15 degrees
- B. 30 degrees
- C. 45 degrees
- D. 90 degrees
Correct answer: C
Rationale: The correct angle of insertion for a subcutaneous injection, such as heparin, is 45 degrees. This angle is appropriate as it helps to ensure proper delivery of the medication into the subcutaneous tissue. Option A (15 degrees) is too shallow for a subcutaneous injection and may result in the medication being deposited into the muscle. Option B (30 degrees) is also too shallow for subcutaneous injections. Option D (90 degrees) is used for intramuscular injections, not subcutaneous injections.
2. After placement of a left subclavian central venous catheter (CVC), the nurse receives a report of the X-ray findings indicating that the CVC tip is in the client's superior vena cava. Which action should the nurse implement?
- A. Remove the catheter and apply direct pressure for 5 minutes.
- B. Initiate intravenous fluids as prescribed.
- C. Secure the catheter using aseptic technique.
- D. Notify the healthcare provider of the need to reposition the catheter.
Correct answer: B
Rationale: Initiating intravenous fluids as prescribed is the appropriate action when the CVC tip is correctly placed in the superior vena cava. Intravenous fluids can now be administered effectively through the central line. Removing the catheter and applying direct pressure is unnecessary and not indicated as the tip is in the correct position. Securing the catheter using aseptic technique is important for preventing infections but is not the immediate action needed in this situation. Notifying the healthcare provider of the need to reposition the catheter may delay necessary fluid administration, which is the priority at this time.
3. A client comes to the antepartal clinic and tells the nurse that she is 6 weeks pregnant. Which sign is she most likely to report?
- A. Decreased sexual libido
- B. Amenorrhea
- C. Quickening
- D. Nocturia
Correct answer: B
Rationale: Amenorrhea is the absence of menstrual periods and is a common early sign of pregnancy, typically reported by a client who is 6 weeks pregnant. Decreased sexual libido (Choice A) may or may not be experienced in early pregnancy, but it is not as specific as amenorrhea. Quickening (Choice C) refers to fetal movements felt by the mother, which usually occurs around 18-20 weeks of pregnancy, not at 6 weeks. Nocturia (Choice D) is waking up at night to urinate and is not typically associated with early pregnancy.
4. A client with a diagnosis of chronic kidney disease (CKD) is receiving epoetin alfa (Epogen). What is the primary goal of this medication?
- A. To reduce the risk of bleeding.
- B. To lower blood pressure.
- C. To stimulate red blood cell production.
- D. To increase appetite.
Correct answer: C
Rationale: The correct answer is C: 'To stimulate red blood cell production.' Epoetin alfa, such as Epogen, is used to treat anemia by stimulating red blood cell production in clients with chronic kidney disease. This medication helps increase hemoglobin levels and reduce the need for blood transfusions. Option A, 'To reduce the risk of bleeding,' is incorrect as epoetin alfa does not directly impact bleeding risk. Option B, 'To lower blood pressure,' is incorrect as epoetin alfa is not indicated for blood pressure management. Option D, 'To increase appetite,' is also incorrect as the primary goal of epoetin alfa is related to improving anemia by boosting red blood cell production.
5. A client with a diagnosis of bipolar disorder is prescribed lithium. Which electrolyte imbalance should the nurse monitor for?
- A. Hyponatremia
- B. Hypokalemia
- C. Hypercalcemia
- D. Hypernatremia
Correct answer: A
Rationale: The correct answer is A: Hyponatremia. Lithium can affect sodium levels in the body, potentially leading to hyponatremia, which is a condition characterized by low sodium levels. This imbalance requires close monitoring as it can lead to symptoms such as confusion, weakness, and even seizures. Choices B, C, and D are incorrect because lithium is not primarily associated with causing hypokalemia, hypercalcemia, or hypernatremia. While these imbalances can occur in certain conditions or with other medications, the main electrolyte imbalance to monitor when a client is prescribed lithium is hyponatremia.
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