HESI LPN
Adult Health 2 Exam 1
1. What is the primary function of neutrophils?
- A. Heparin secretion
- B. Transport oxygen
- C. Phagocytotic action
- D. Antibody formation
Correct answer: C
Rationale: The correct answer is C: Phagocytotic action. Neutrophils are key components of the immune system, primarily involved in the phagocytosis of bacteria and other pathogens. Choice A, Heparin secretion, is incorrect as heparin is primarily secreted by mast cells and basophils. Choice B, Transport oxygen, is incorrect as this is mainly the function of red blood cells. Choice D, Antibody formation, is incorrect as antibody production is primarily carried out by B lymphocytes.
2. What intervention has the highest priority for a client with a fourth-degree midline laceration following the vaginal delivery of an 8-pound 10-ounce infant?
- A. Administer a prescribed stool softener
- B. Administer prescribed PRN sleep medications
- C. Encourage breastfeeding to promote uterine involution
- D. Encourage the use of prescribed analgesic perineal sprays
Correct answer: A
Rationale: Administering a prescribed stool softener is the highest priority intervention for a client with a fourth-degree midline laceration to prevent straining during bowel movements, which could potentially harm the healing laceration. Stool softeners help in maintaining soft stools, reducing the risk of injury to the suture line. Administering PRN sleep medications, encouraging breastfeeding, or promoting the use of analgesic perineal sprays are important aspects of care but are not the priority in this situation. Stool softeners play a crucial role in preventing complications and promoting healing in such cases, making it the most urgent intervention.
3. The client with high blood pressure is being taught by the nurse to avoid adding salt during cooking. What effect does sodium have on blood pressure?
- A. It decreases the viscosity of blood
- B. It leads to increased fluid retention
- C. It causes vasoconstriction of the blood vessels
- D. It enhances the excretion of potassium
Correct answer: C
Rationale: The correct answer is C: 'It causes vasoconstriction of the blood vessels.' Sodium can lead to vasoconstriction, which narrows the blood vessels, increasing resistance to blood flow and subsequently raising blood pressure. Choices A, B, and D are incorrect. Sodium does not decrease blood viscosity, but it can lead to fluid retention, which increases blood volume and pressure. It does not enhance the excretion of potassium; instead, high sodium intake can lead to potassium excretion by the kidneys.
4. A client with hypothyroidism is taking levothyroxine (Synthroid). Which symptom should prompt the nurse to notify the healthcare provider?
- A. Weight gain
- B. Bradycardia
- C. Nervousness and tremors
- D. Fatigue
Correct answer: C
Rationale: The correct answer is C: Nervousness and tremors. These symptoms may indicate hyperthyroidism resulting from excessive dosing of levothyroxine. Weight gain (Choice A) is a common symptom of hypothyroidism and may indicate undertreatment or inadequate dosing. Bradycardia (Choice B) is a symptom of hypothyroidism and may improve with levothyroxine therapy; it does not typically indicate an urgent need for healthcare provider notification. Fatigue (Choice D) is a symptom of hypothyroidism and can persist even with levothyroxine treatment, so it is not a symptom that would require immediate notification of the healthcare provider.
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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