Adverse Effects-Contraindications Practice Test 3
Adverse Effects-Contraindications NCLEX Practice Test
Adverse Effects-Contraindications is a key topic within the NCLEX test plan, located under Physiological Integrity → Pharmacological and Parenteral Therapies → Adverse Effects-Contraindications. This section identifies medication risks, interactions, and adverse effects for safe pharmacologic care. Each test contains 50 questions designed to mirror the difficulty and variety of the real exam.
This is the 3rd part of the Adverse Effects-Contraindications series. To explore all practice tests under this topic, use the “Back to Main Topic” button at the end of the page.
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Adverse Effects-Contraindications Practice Test 3
Which client statement indicates a need for additional education about interferon injections for multiple sclerosis?
- Muscle aches can be treated with heat therapy.
- Loss of appetite and nausea are expected side effects.
- I will report the yellowing of my skin or eyes to the doctor.
- I can treat fever with acetaminophen, as prescribed by the doctor.
Explanation: Answer reason: Heat can exacerbate multiple sclerosis symptoms and is not recommended for interferon-related myalgias; management is with antipyretics/analgesics. Nausea/anorexia are expected effects, jaundice must be reported, and acetaminophen for fever is appropriate.
Which existing client condition causes the nurse to contact the prescribing health care provider before giving the initial dose of propylthiouracil (PTU) to a client diagnosed with Graves disease?
- The client exhibits slurred speech when talking to the nurse.
- The client's baseline blood pressure is indicative of hypertension.
- The client takes anticoagulant for diagnosis of atrial fibrillation.
- The client requests extra blankets and increased room temperature.
Explanation: Answer reason: PTU can potentiate the effects of anticoagulants, increasing bleeding risk; the prescriber should be contacted for potential dose adjustments and monitoring. Hypertension, slurred speech, or feeling cold are not direct contraindications to the first PTU dose.
Which instructions should a nurse provide to a patient prescribed lisinopril for hypertension?
- Avoid potassium-rich foods
- Rise slowly when changing positions
- Take the medication with a high-fat meal
- Monitor for persistent dry cough
- Stop the medication if blood pressure normalizes
Explanation: Answer reason: ACE inhibitors like lisinopril can cause first-dose and orthostatic hypotension; teaching to rise slowly helps prevent dizziness and falls. Avoiding all potassium-rich foods is overly restrictive (avoid K+ supplements/salt substitutes instead). A high-fat meal is unnecessary, cough should be reported but safety priority is orthostatic risk, and antihypertensives should not be stopped abruptly.
Which teaching point should the nurse include when instructing a client with hypertension about the newly prescribed medication diltiazem?
- A nagging cough can occur as a side effect of the medication.
- This medication may cause you to go to the bathroom often.
- Avoid taking the medication with grapefruit juice.
- You will need to increase your dietary intake of potassium-rich foods.
Explanation: Answer reason: Diltiazem is a calcium channel blocker metabolized by CYP3A4; grapefruit juice inhibits CYP3A4 and can raise drug levels, increasing risk of bradycardia/hypotension. Cough is linked to ACE inhibitors, increased urination to diuretics, and potassium diet changes to diuretics or ACE inhibitors—not diltiazem.
Which client statement requires further assessment by the nurse for a client diagnosed with tuberculosis and receiving isoniazid, rifampin, and pyrazinamide?
- I have gained 5 pounds since taking the medication.
- I cover my nose and mouth when I cough or sneeze.
- I drink a glass of wine with dinner each night.
- I have stopped eating tuna salad sandwiches.
Explanation: Answer reason: Alcohol use with isoniazid and pyrazinamide increases risk of severe hepatotoxicity; this behavior requires further assessment and education. The other statements reflect appropriate actions or noncritical changes.
A client is prescribed fluticasone propionate for asthma. What education should the nurse provide regarding fluticasone propionate?
- Use the medication as a rescue inhaler during an asthma attack
- Rinse the mouth after each use to prevent oral thrush
- Increase the dose if asthma symptoms worsen
- Discontinue the medication abruptly if side effects occur
Explanation: Answer reason: Fluticasone propionate is an inhaled corticosteroid used for maintenance therapy, not for acute attacks. Rinsing the mouth after use prevents oral candidiasis, a common adverse effect. The other options are unsafe or incorrect.
A client is prescribed diphenhydramine for allergic rhinitis. What education should the nurse provide regarding diphenhydramine?
- Take the medication with a full glass of water
- Expect immediate relief of symptoms
- Avoid driving or operating heavy machinery while taking the medication
- Take the medication on an empty stomach
Explanation: Answer reason: Diphenhydramine is a first-generation antihistamine that commonly causes CNS depression and drowsiness; patients should avoid driving or operating machinery due to sedation risk.
A client is prescribed prednisone for the management of an autoimmune disorder. What education should the nurse provide regarding prednisone?
- Take the medication on an empty stomach
- Discontinue the medication abruptly if side effects occur
- Monitor blood glucose levels regularly
- Increase calcium intake while on the medication
Explanation: Answer reason: Prednisone (a glucocorticoid) can cause hyperglycemia; clients should monitor blood glucose. It should be taken with food, not on an empty stomach, and should not be stopped abruptly. While calcium/vitamin D intake may be advised, monitoring glucose addresses a key adverse effect.
A client with chronic obstructive pulmonary disease (COPD) is prescribed bronchodilator medication. What should the nurse instruct the client about the use of bronchodilators?
- Use the medication only during exacerbations
- Take the medication on an empty stomach
- Rinse the mouth after each use to prevent thrush
- Stop the medication when symptoms improve
Explanation: Answer reason: Many COPD inhalers include an inhaled corticosteroid with bronchodilators; ICS can cause oral candidiasis, so the client should rinse the mouth after each use to prevent thrush. The other options are incorrect patient teaching.
What effect should the nurse caution sexually active female clients taking isoniazid (INH) about?
- Increases the risk of vaginal infection.
- Has mutagenic effects on ova.
- Decreases the effectiveness of hormonal contraceptives.
- Inhibits ovulation.
Explanation: Answer reason: Isoniazid, like many antibiotics, can disrupt normal vaginal flora and predispose to candidal vaginitis; other listed effects are not associated with INH.
Which of the following is an important nursing consideration for a patient with acromegaly being treated with octreotide, a growth hormone receptor antagonist?
- Monitor for hyperglycemia
- Assess for signs of dehydration
- Evaluate thyroid function
- Check for adrenal insufficiency
Explanation: Answer reason: Octreotide (a somatostatin analog) can inhibit insulin and alter glucose regulation, increasing the risk of hyperglycemia; blood glucose monitoring is a key nursing consideration.
A patient with heart failure is receiving an osmotic diuretic alongside other diuretics; what potential complication should the nurse monitor for?
- Hypocalcemia
- Fluid overload
- Bone marrow suppression
- Acute pancreatitis
Explanation: Answer reason: Osmotic diuretics (e.g., mannitol) initially expand intravascular volume by pulling fluid into the bloodstream, which can precipitate or worsen heart failure and lead to pulmonary edema—i.e., fluid overload.
Which medication should be held for 48 hours before and after cardiac catheterization in a client with type II diabetes mellitus?
- Regular insulin
- Glipizide (Glucotrol)
- Repaglinide (Prandin)
- Metformin (Glucophage)
Explanation: Answer reason: Iodinated contrast used in cardiac catheterization can precipitate acute kidney injury, increasing metformin accumulation and risk of lactic acidosis. Therefore, metformin is held 48 hours before and after the procedure.
A client is admitted with severe pain and is prescribed morphine sulfate. What is the priority nursing action before administering morphine sulfate?
- Assess the client's pain level
- Check the client's blood pressure
- Ensure that the client has signed a consent form
- Evaluate the client's respiratory rate
Explanation: Answer reason: Opioids like morphine can cause respiratory depression. Before administration, the priority is to assess respiratory rate and withhold if it is low, as airway/breathing takes precedence over other assessments.
A client is prescribed prednisone for an autoimmune disorder. What education should the nurse provide regarding prednisone?
- Take the medication on an empty stomach
- Discontinue the medication abruptly if side effects occur
- Avoid crowds and individuals with infections
- Increase dietary intake of potassium
Explanation: Answer reason: Prednisone is an immunosuppressive corticosteroid, increasing susceptibility to infection. Clients should avoid exposure to crowds and sick contacts. It should not be taken on an empty stomach and should not be stopped abruptly.
A client is prescribed levofloxacin for a respiratory infection. What education should the nurse provide regarding levofloxacin?
- Take the medication with dairy products
- Administer the medication on an empty stomach
- Increase fluid intake to prevent crystalluria
- Discontinue the medication if gastrointestinal upset occurs
Explanation: Answer reason: Fluoroquinolones like levofloxacin can cause crystalluria; encouraging increased fluid intake helps prevent crystal formation in the urine. Clients should avoid dairy/antacids that reduce absorption and should not stop therapy for mild GI upset.
A client is prescribed enoxaparin for deep vein thrombosis (DVT) prophylaxis. What is the primary nursing consideration during enoxaparin therapy?
- Monitor for signs of infection
- Assess for increased intracranial pressure
- Monitor for signs of bleeding
- Administer the medication in the deltoid muscle
Explanation: Answer reason: Enoxaparin is a low-molecular-weight heparin anticoagulant; the primary risk is bleeding. Monitor for bruising, hematuria, melena, and other hemorrhage signs. It is given subcutaneously, not IM; infection and ICP are not primary concerns.
A client is prescribed enoxaparin (Lovenox) for deep vein thrombosis (DVT) prophylaxis. What is the primary nursing consideration during enoxaparin therapy?
- Monitor for signs of infection
- Assess for increased intracranial pressure
- Administer the medication in the deltoid muscle
- Monitor for signs of bleeding
Explanation: Answer reason: Enoxaparin is a low-molecular-weight heparin anticoagulant; the primary risk is bleeding. Nurses should monitor for bruising, hematuria, melena, and other bleeding signs.
A client is prescribed a nonsteroidal anti-inflammatory drug (NSAID) for pain relief. What education should the nurse provide regarding NSAID use?
- Take the medication on an empty stomach
- Increase fluid intake while on the medication
- Expect immediate pain relief
- Monitor for signs of gastrointestinal bleeding
Explanation: Answer reason: NSAIDs increase risk of GI irritation and bleeding; clients should be taught to watch for black, tarry stools, coffee-ground emesis, or abdominal pain. They should not be taken on an empty stomach, immediate relief is not guaranteed, and hydration is less critical than monitoring for GI bleeding.
A patient is prescribed warfarin (Coumadin) after a mechanical valve replacement. Which food should they limit to avoid interference with the medication?
- Bananas
- Spinach
- Chicken
- Potatoes
Explanation: Answer reason: Spinach is high in vitamin K, which counteracts warfarin and can lower INR. Patients should limit or keep a consistent intake of vitamin K–rich leafy greens.
Which TB drug causes orange discoloration of body fluids?
- Isoniazid
- Pyrazinamide
- Rifampin
- Ethambutol
Explanation: Answer reason: Rifampin commonly causes orange-red discoloration of urine, tears, sweat, and other body fluids; the others do not.
A client is prescribed enoxaparin for deep vein thrombosis (DVT) prophylaxis. What is the primary nursing consideration during enoxaparin therapy?
- Monitor for signs of bleeding
- Assess for increased intracranial pressure
- Monitor liver function
- Monitor platelet count
Explanation: Answer reason: Enoxaparin (LMWH) is an anticoagulant; the foremost safety concern is hemorrhage. The priority nursing action is to monitor for signs of bleeding. Platelets should also be monitored for HIT, but bleeding assessment is the primary consideration.
A client with rheumatoid arthritis is prescribed methotrexate. What is the primary nursing consideration during methotrexate therapy?
- Monitor for signs of infection
- Encourage the client to consume a high-fiber diet
- Administer the medication with milk
- Assess for increased blood pressure
Explanation: Answer reason: Methotrexate is an immunosuppressant that can cause bone marrow suppression, increasing the risk for infection. Priority nursing action is to monitor for signs of infection. The other options are not primary considerations for this drug.
A client is admitted with a pulmonary embolism and is prescribed enoxaparin (Lovenox). What laboratory value should the nurse monitor closely during enoxaparin therapy?
- Platelet count
- Activated partial thromboplastin time (aPTT)
- International normalized ratio (INR)
- Serum creatinine
Explanation: Answer reason: Enoxaparin (LMWH) does not require routine aPTT or INR monitoring. The key lab to monitor is platelet count to detect heparin-induced thrombocytopenia.
A client is receiving intravenous (IV) fentanyl for pain management. What is the priority nursing assessment before administering fentanyl?
- Respiratory rate
- Blood pressure
- Temperature
- Blood glucose level
Explanation: Answer reason: Opioids such as fentanyl can cause life-threatening respiratory depression. Airway/breathing take priority, so assess respiratory rate (and hold if low) before administration.
A client is receiving intravenous (IV) furosemide for heart failure. What laboratory value should the nurse monitor closely during furosemide therapy?
- Serum potassium level
- Serum sodium level
- Blood urea nitrogen (BUN)
- Serum creatinine level
Explanation: Answer reason: Furosemide is a loop diuretic that increases renal potassium excretion, placing the client at risk for hypokalemia and dysrhythmias; therefore potassium must be monitored most closely.
A client is prescribed alprazolam for anxiety. What education should the nurse provide regarding alprazolam?
- Take the medication on an empty stomach
- Administer the medication at bedtime
- Take the medication with a full glass of milk
- Avoid consuming tyramine-rich foods
Explanation: Answer reason: Alprazolam is a benzodiazepine that commonly causes sedation and drowsiness; dosing at bedtime reduces daytime impairment. It does not require an empty stomach or milk, and tyramine restrictions apply to MAOIs, not benzodiazepines.
Which assessment finding in a patient with acute coronary syndrome receiving nitroglycerin requires immediate intervention?
- Blood pressure of 90/60 mmHg
- Headache rated 5/10
- Heart rate of 80
- Mild flushing of the skin
Explanation: Answer reason: Nitroglycerin can cause significant hypotension; a BP of 90/60 mmHg indicates potentially dangerous hemodynamic compromise requiring immediate intervention. Headache and flushing are expected effects, and HR 80 is normal.
A patient’s current medication list includes warfarin and amiodarone; which assessment should the nurse perform?
- Assess the patient's nutritional status for vitamin K.
- Monitor the patient for signs of increased bleeding.
- Instruct the patient to take medications at different times.
- Evaluate the patient's heart rate for arrhythmias.
Explanation: Answer reason: Amiodarone inhibits warfarin metabolism, increasing INR and bleeding risk; priority assessment is for signs of bleeding.
When assessing a client prescribed pyridostigmine, which side effect should the nurse ask the client about?
- Mouth ulcers
- Muscle cramps
- Feelings of depression
- Unexplained weight gain
Explanation: Answer reason: Pyridostigmine, an acetylcholinesterase inhibitor for myasthenia gravis, increases acetylcholine at the neuromuscular junction, commonly causing muscarinic and nicotinic effects such as muscle cramps/fasciculations. Mouth ulcers, depression, and weight gain are not typical adverse effects.
Which of the following tests should be performed before beginning prescription of Accutane?
- Check the calcium level
- Perform a pregnancy test
- Monitor apical pulse
- Obtain creatinine level
Explanation: Answer reason: Isotretinoin (Accutane) is highly teratogenic; pregnancy is an absolute contraindication. A pregnancy test is required before initiation. Calcium, apical pulse, and creatinine are not baseline requirements for Accutane.
When caring for a client receiving prolonged aspirin therapy, the nursing staff should be alert for symptoms of what condition?
- Urinary calculi
- Prolonged bleeding time
- Atrophy of the liver
- Premature erythrocyte destruction
Explanation: Answer reason: Aspirin irreversibly inhibits platelet COX-1, reducing thromboxane A2 and platelet aggregation, which prolongs bleeding time. The other options are not typical adverse effects of prolonged aspirin therapy.
A patient frequently taking calcium carbonate should be advised that this practice may lead to which condition?
- Water retention
- Rebound hyperacidity
- Bone demineralization
- Diarrhea
Explanation: Answer reason: Calcium carbonate antacids can cause acid rebound by stimulating gastrin release, leading to increased gastric acid after use. They are more associated with constipation than diarrhea; water retention and bone demineralization are not typical effects.
What is the most appropriate nursing action when a patient taking an SSRI develops a rash?
- Document the finding and continue to monitor
- Apply topical steroid cream
- Assess further for other symptoms
- Contact the care provider immediately
Explanation: Answer reason: A new rash on an SSRI can indicate a hypersensitivity reaction or serious cutaneous adverse effect; the nurse should notify the provider immediately rather than treat topically or simply monitor.
A client is prescribed ciprofloxacin for a urinary tract infection. What education should the nurse provide regarding ciprofloxacin?
- Take the medication with antacids
- Avoid sunlight exposure
- Take the medication on an empty stomach
- Discontinue the medication if symptoms improve
Explanation: Answer reason: Fluoroquinolones like ciprofloxacin can cause photosensitivity; patients should avoid excessive sunlight. Antacids decrease absorption, food is not required, and therapy should be completed even if symptoms improve.
A client is prescribed ranolazine for chronic angina. What education should the nurse provide regarding ranolazine?
- Take the medication with antacids
- Administer the medication on an empty stomach
- Avoid grapefruit juice while on the medication
- Discontinue the medication if symptoms improve
Explanation: Answer reason: Grapefruit inhibits CYP3A, increasing ranolazine levels and QT-prolongation risk; therefore it should be avoided. Ranolazine can be taken with or without food, should not be taken specifically with antacids, and should not be discontinued without provider guidance.
A client is prescribed lisinopril for hypertension. What education should the nurse provide regarding lisinopril?
- Take the medication on an empty stomach
- Increase potassium intake while on the medication
- Expect immediate blood pressure reduction
- Avoid salt substitutes containing potassium
Explanation: Answer reason: ACE inhibitors like lisinopril can cause hyperkalemia. Clients should avoid potassium-containing salt substitutes. The drug does not require an empty stomach, potassium intake should not be increased, and BP reduction is not immediate.
A client is prescribed nitroglycerin for angina. What education should the nurse provide regarding nitroglycerin?
- Take the medication with a full glass of water
- Expect immediate relief of symptoms
- Store the medication in the refrigerator
- Avoid using erectile dysfunction medications concurrently
Explanation: Answer reason: Nitrates taken with PDE-5 inhibitors (e.g., sildenafil) can cause profound hypotension and are contraindicated, so clients must avoid concurrent use.
A client is prescribed sertraline for depression. What education should the nurse provide regarding sertraline?
- Expect immediate improvement in mood
- Discontinue the medication if side effects occur
- Take the medication on an empty stomach
- Monitor for signs of suicidal ideation
Explanation: Answer reason: SSRIs like sertraline carry a black box warning for increased suicidal thoughts, especially early in therapy. Patients should be taught to monitor and report suicidal ideation. Effects are not immediate, medication should not be stopped abruptly, and it does not need to be taken on an empty stomach.
The mother of a two month-old baby calls the nurse at a well-baby clinic two days after the first DTaP immunization. She reports that the baby feels very warm, has cried inconsolably for as long as three hours, and has had several shaking spells. The response of the nurse should be to?
- Instruct the mother to call 911 for an ambulance to transport the infant
- Suggest that these are expected reactions and to begin every 4 hour antipyretics
- Tell the mother to take the infant immediately to the nearest emergency room
- Give instructions to bring the infant to the clinic now
Explanation: Answer reason: Fever with prolonged inconsolable crying and shaking spells after DTaP indicate a severe adverse reaction with risk of encephalopathy/seizures. The safest action is to activate EMS for immediate evaluation and monitored transport.
Which medication is most likely causing palpitations and shortness of breath after a client accidentally doubled her daily dose for one week?
- Levothyroxine sodium (Synthroid)
- Atenolol (Tenormin)
- Digoxin (Lanoxin)
- Furosemide (Lasix)
Explanation: Answer reason: Excess levothyroxine can produce hyperthyroid effects such as tachycardia, palpitations, and dyspnea. The other drugs would more likely cause bradycardia (atenolol), visual/GI arrhythmic toxicity (digoxin), or volume-electrolyte issues (furosemide).
What is essential for the nurse to monitor in a client receiving desmopressin for diabetes insipidus?
- Serum sodium level
- Serum glucose
- Serum magnesium level
- Serum calcium level
Explanation: Answer reason: Desmopressin can cause water retention and dilutional hyponatremia; monitoring serum sodium is essential to detect this adverse effect.
Prolonged use of omeprazole can cause deficiency of which vitamin or mineral?
- Deficiency of iron
- Deficiency of folic acid
- Deficiency of vitamin B12
- Deficiency of vitamin C
Explanation: Answer reason: Chronic PPI therapy reduces gastric acid needed to release vitamin B12 from food, decreasing absorption and leading to B12 deficiency.
What symptom would be a warning sign of potential withdrawal syndrome in a client with a history of depression who is considering stopping their SSRI medication?
- Constipation
- Increased energy
- Dizziness
- Weight gain
Explanation: Answer reason: SSRI discontinuation syndrome commonly presents with dizziness, flu-like symptoms, insomnia, and sensory disturbances; constipation, weight gain, and increased energy are not typical withdrawal signs.
What is the appropriate nursing action for a patient taking Lisinopril who complains of a persistent dry cough?
- Continue Lisinopril
- Add a cough suppressant
- Switch to Losartan
- Reduce the dose
Explanation: Answer reason: Persistent dry cough is a common adverse effect of ACE inhibitors like lisinopril due to bradykinin. The appropriate action is to switch to an ARB (e.g., losartan) rather than continue, suppress the cough, or just reduce the dose.
A client is prescribed warfarin (Coumadin) therapy. What dietary education should the nurse provide regarding vitamin K intake?
- Increase vitamin K-rich foods
- Avoid foods high in vitamin K
- Take vitamin K supplements daily
- Consume vitamin K with the medication
Explanation: Answer reason: Warfarin’s effect is reduced by vitamin K; patients should not increase or supplement vitamin K and are commonly instructed to avoid high-vitamin K foods. Among the options, avoiding vitamin K–rich foods is the safest teaching.
A client is admitted with rheumatoid arthritis and is prescribed methotrexate. What laboratory value should the nurse monitor closely during methotrexate therapy?
- Serum potassium level
- Complete blood count (CBC)
- Blood glucose level
- Serum calcium level
Explanation: Answer reason: Methotrexate can cause bone marrow suppression; monitor CBC for leukopenia, anemia, and thrombocytopenia.
A client is prescribed aspirin for pain relief. What instruction should the nurse provide regarding the use of aspirin?
- Take aspirin on an empty stomach
- Take aspirin with a full glass of milk
- Avoid taking aspirin with other NSAIDs
- Crush aspirin tablets before swallowing
Explanation: Answer reason: Concurrent use of aspirin with other NSAIDs increases the risk of GI irritation/bleeding and can interfere with aspirin’s antiplatelet effect. Therefore clients should avoid combining them.
Which finding indicates that a client receiving torsemide 5 mg orally daily is experiencing an adverse effect related to the medication?
- A chloride level of 98 mEq/L
- A sodium level of 135 mEq/L
- A potassium level of 3.1 mEq/L
- A blood urea nitrogen (BUN) of 15 mg/dL
Explanation: Answer reason: Torsemide is a loop diuretic that increases renal potassium excretion. A potassium level of 3.1 mEq/L indicates hypokalemia, a known adverse effect that can lead to muscle weakness and cardiac dysrhythmias. The other listed values are within normal limits.
Which patient population is at highest risk for developing complications related to low-molecular-weight heparin therapy?
- A pregnant woman
- A patient with renal impairment
- A healthy adult undergoing outpatient surgery
- A patient with a history of superficial vein thrombosis
Explanation: Answer reason: Low-molecular-weight heparins are primarily eliminated by the kidneys. In patients with renal impairment, drug accumulation can occur, significantly increasing the risk of bleeding complications. Pregnancy alone does not confer the highest complication risk compared with impaired renal clearance.
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