Question

A client is receiving amphotericin B intravenously for treatment of a fungal infection. Which laboratory result is most important for the nurse to report to the healthcare provider (HCP)?

Reference Ranges:

Creatinine: 0.5–1.1 mg/dL (44–97 µmol/L)

Hematocrit (Hct): 42%–52% (0.42–0.52 volume fraction)

Potassium (K⁺): 3.5–5.0 mEq/L (3.5–5.0 mmol/L)

Platelets: 150,000–400,000/mm³ (150–400 × 10⁹/L)

Answer 1

Correct Answers:

Creatinine 3.8 mg/dL (336 µmol/L)

Rationale :

🧪Amphotericin B is well known for causing significant nephrotoxicity, so renal function must be monitored closely during therapy.

🚨A creatinine of 3.8 mg/dL is markedly above the reference range and indicates substantial renal impairment that requires prompt reporting.

💊Accumulation of renal toxicity can lead to worsening kidney injury and may require modification or discontinuation of amphotericin B therapy.

🩺Because the elevated creatinine represents a potentially serious adverse drug effect, it has greater clinical priority than the other laboratory findings.

📌Core Message

Amphotericin B can cause severe nephrotoxicity, making a markedly elevated serum creatinine the most urgent laboratory abnormality to report.

Answer 2

Correct Answers:

Be alert for possible cross-sensitivity to cephalosporin agents.

Rationale :

💊A severe maculopapular rash after penicillin indicates a significant hypersensitivity reaction to the medication.

⚠️Penicillins and cephalosporins are both beta-lactam antibiotics, so some degree of cross-reactivity can occur between these drug classes.

🛡️The client should inform healthcare providers about the previous penicillin allergy whenever future antibiotics are prescribed.

📋Recognizing possible cross-sensitivity helps prevent potentially more severe allergic reactions during subsequent antibiotic therapy.

📌Core Message

A history of significant penicillin hypersensitivity requires awareness of possible cross-sensitivity with cephalosporins during future antibiotic treatment.

Answer 3

Correct Answers:

Notify the healthcare provider of the finding.

Rationale :

🧪A total calcium level of 5.5 mg/dL represents severe hypocalcemia because the normal range is approximately 9 to 10.4 mg/dL.

🚨Severe hypocalcemia can produce tetany, seizures, cardiac dysrhythmias, and potentially life-threatening complications.

💊Long-term corticosteroid therapy such as methylprednisolone can decrease calcium absorption and contribute to bone mineral loss.

📞The nurse should therefore immediately notify the healthcare provider so the severe electrolyte abnormality can be evaluated and treated appropriately.

📌Core Message

Severe hypocalcemia is a potentially dangerous electrolyte abnormality requiring prompt healthcare provider notification before routine medication administration continues.

Answer 4

Correct Answers:

Advise the client to review medication use with the healthcare provider.

Rationale :

💊The simultaneous use of ibuprofen and low-dose aspirin can increase the risk of gastrointestinal irritation, ulceration, and bleeding.

🩸Ibuprofen may also interfere with the antiplatelet effect of aspirin depending on the timing of administration.

🧓Older adults are particularly vulnerable to renal impairment and gastrointestinal bleeding from repeated NSAID exposure.

📋A healthcare provider should therefore review the client's entire analgesic regimen to determine the safest approach to chronic joint pain.

📌Core Message

Regular use of ibuprofen with low-dose aspirin in an older adult warrants professional medication review because of increased gastrointestinal, renal, and interaction risks.

Answer 5

Correct Answers:

"I'll take my usual oral contraceptives for birth control."

Rationale :

💊Rifampin strongly induces hepatic enzymes responsible for metabolizing many medications, including hormonal contraceptives.

⚠️This enzyme induction can significantly reduce the effectiveness of oral contraceptives, increasing the risk of unintended pregnancy.

🛡️Clients taking rifampin should use a reliable nonhormonal or additional contraceptive method during therapy according to provider guidance.

📚Therefore, relying solely on usual oral contraceptives demonstrates a need for additional medication teaching.

📌Core Message

Rifampin accelerates the metabolism of hormonal contraceptives and can reduce their contraceptive effectiveness, requiring an alternative or additional birth-control method.

Answer 6

Correct Answers:

Take additional doses as needed.

Rationale :

💊Acetaminophen must be taken within recommended dosage limits because excessive amounts can cause serious hepatotoxicity.

🚨Taking uncontrolled additional doses can exceed the safe maximum daily dose, especially when combination medications containing acetaminophen are also used.

🧬Excessive acetaminophen produces toxic metabolites that can result in severe hepatic injury or liver failure.

📚The client therefore requires further teaching about adhering to the prescribed dose and dosing interval rather than freely adding doses.

📌Core Message

Acetaminophen dosing limits must be followed carefully because excessive or additional doses can cause potentially fatal hepatotoxicity.

Answer 7

Correct Answers:

Contact the healthcare provider (HCP).

Rationale :

🚨A history of anaphylaxis to penicillin represents a severe and potentially life-threatening beta-lactam hypersensitivity.

💊Cephalexin is a first-generation cephalosporin and may have clinically relevant cross-reactivity in clients with severe penicillin allergy.

📞The nurse should contact the healthcare provider before administering the drug so an alternative antibiotic can be considered.

🛡️Preventing another episode of anaphylaxis takes priority over administering a medication with potential cross-allergenic risk.

📌Core Message

A history of penicillin-induced anaphylaxis requires the nurse to question a cephalexin prescription and contact the healthcare provider before administration.

Answer 8

Correct Answers:

Severe itching.

Rationale :

🧴Severe itching or pruritus can be an early manifestation of an allergic reaction to diclofenac.

⚠️Hypersensitivity may initially produce pruritus, flushing, urticaria, or other skin manifestations before progressing to more serious symptoms.

💊Diclofenac is an NSAID, and hypersensitivity reactions can occasionally progress to bronchospasm or anaphylaxis.

👩‍⚕️Recognizing severe itching early allows prompt assessment and intervention before the allergic response becomes more severe.

📌Core Message

Sudden severe itching while taking diclofenac can be an early warning sign of drug hypersensitivity requiring prompt assessment.

Answer 9

Correct Answers:

Check stool for occult blood.

Rationale :

💊Aspirin 650 mg four times daily represents substantial salicylate exposure and increases the risk of gastrointestinal mucosal injury.

🩸Aspirin inhibits platelet aggregation and can cause gastrointestinal bleeding, which may initially be occult rather than visibly apparent.

🔬Checking stool for occult blood helps identify gastrointestinal bleeding before significant blood loss becomes clinically obvious.

🚨Because bleeding may become serious, surveillance for GI hemorrhage is a priority nursing intervention during high-dose aspirin therapy.

📌Core Message

High-dose aspirin therapy increases the risk of gastrointestinal hemorrhage, making assessment for occult blood in stool a priority.

Answer 10

Correct Answers:

Instruct the client to take the morphine sulfate every 12 hours as prescribed.

Rationale :

💊Scheduled extended-duration opioid therapy for chronic pain is intended to maintain relatively consistent analgesic blood levels.

⏰Taking morphine only after the pain becomes severe allows breakthrough pain to develop and makes pain control more difficult.

🎯Administering the medication every 12 hours as prescribed promotes more effective continuous pain management and improves functional comfort.

📚The nurse should reinforce the prescribed dosing schedule rather than encouraging the client to wait until pain becomes intolerable.

📌Core Message

Scheduled morphine therapy for chronic pain should be taken at the prescribed intervals to maintain consistent analgesia and prevent severe breakthrough pain.

HESI RN Pharmacology 2026 Exam-2

No.

2 :
The client reports to the nurse that the last time penicillin was prescribed a severe maculopapular rash appeared over the entire chest. Which information should the nurse provide the client regarding future antibiotic prescriptions?

3 :
Prior to administering an oral dose of methylprednisolone, the nurse determines the client's serum total calcium level is 5.5 mg/dL (1.4 mmol/L). Which action is most important for the nurse to take?
Reference Range:
Total Calcium [9 to 10.4 mg/dL (2.3 to 2.6 mmol/L)]

5 :
A female client is being treated for tuberculosis with rifampin. Which statement indicates that more teaching is needed?

6 :
The nurse is educating a client about acetaminophen. Which information provided by the client requires additional instruction by the nurse?

7 :
A client with a history of anaphylactic reaction to penicillin receives a prescription for cephalexin 500 mg PO twice daily. Which action should the nurse take?

8 :
When caring for a client who is taking diclofenac for moderate arthritic pain, which symptom provides the nurse with the earliest indication of possible allergic reaction?

9 :
Which nursing intervention is most important when caring for a client receiving aspirin 650 mg PO four times a day?

10 :
An older adult client returns to the clinic for chronic pain management after taking morphine sulfate 25 mg PO every 12 hours. The client reports taking the medication only when the pain was too severe to sleep. Which action should the nurse implement?

HESI RN Pharmacology 2026 Exam-2

No.

2 : The client reports to the nurse that the last time penicillin was prescribed a severe maculopapular rash appeared over the entire chest. Which information should the nurse provide the client regarding future antibiotic prescriptions?

3 : Prior to administering an oral dose of methylprednisolone, the nurse determines the client's serum total calcium level is 5.5 mg/dL (1.4 mmol/L). Which action is most important for the nurse to take? Reference Range:Total Calcium [9 to 10.4 mg/dL (2.3 to 2.6 mmol/L)]

5 : A female client is being treated for tuberculosis with rifampin. Which statement indicates that more teaching is needed?

6 : The nurse is educating a client about acetaminophen. Which information provided by the client requires additional instruction by the nurse?

7 : A client with a history of anaphylactic reaction to penicillin receives a prescription for cephalexin 500 mg PO twice daily. Which action should the nurse take?

8 : When caring for a client who is taking diclofenac for moderate arthritic pain, which symptom provides the nurse with the earliest indication of possible allergic reaction?

9 : Which nursing intervention is most important when caring for a client receiving aspirin 650 mg PO four times a day?

10 : An older adult client returns to the clinic for chronic pain management after taking morphine sulfate 25 mg PO every 12 hours. The client reports taking the medication only when the pain was too severe to sleep. Which action should the nurse implement?

2 :
The client reports to the nurse that the last time penicillin was prescribed a severe maculopapular rash appeared over the entire chest. Which information should the nurse provide the client regarding future antibiotic prescriptions?

3 :
Prior to administering an oral dose of methylprednisolone, the nurse determines the client's serum total calcium level is 5.5 mg/dL (1.4 mmol/L). Which action is most important for the nurse to take?
Reference Range:
Total Calcium [9 to 10.4 mg/dL (2.3 to 2.6 mmol/L)]

5 :
A female client is being treated for tuberculosis with rifampin. Which statement indicates that more teaching is needed?

6 :
The nurse is educating a client about acetaminophen. Which information provided by the client requires additional instruction by the nurse?

7 :
A client with a history of anaphylactic reaction to penicillin receives a prescription for cephalexin 500 mg PO twice daily. Which action should the nurse take?

8 :
When caring for a client who is taking diclofenac for moderate arthritic pain, which symptom provides the nurse with the earliest indication of possible allergic reaction?

9 :
Which nursing intervention is most important when caring for a client receiving aspirin 650 mg PO four times a day?

10 :
An older adult client returns to the clinic for chronic pain management after taking morphine sulfate 25 mg PO every 12 hours. The client reports taking the medication only when the pain was too severe to sleep. Which action should the nurse implement?