Question

What is the primary use of nystatin?

Answer 1

Correct Answers:

Treating fungal infections

Rationale :

💊 Nystatin is an antifungal medication primarily used to treat fungal infections, especially those caused by Candida species.

💊 It works by binding to ergosterol in the fungal cell membrane, causing increased permeability and cell death, which helps eliminate the fungal organisms.

💊 Nystatin is commonly used for oropharyngeal candidiasis (thrush), cutaneous candidiasis, and intestinal candidiasis, often in forms like oral suspension, tablets, or topical creams.

💊 Unlike systemic antifungals, nystatin is not significantly absorbed from the GI tract when taken orally, so it mainly acts locally in the mouth or gut, reducing systemic side effects.

💊 Because it specifically targets fungal cell membranes, nystatin is not effective against bacteria, viruses, or for blood pressure or pain control, making its primary role the treatment and prevention of local fungal infections.

Lowering blood pressure

💊 Nystatin does not act on the cardiovascular system and has no role in vasodilation or blood pressure regulation.

💊 Medications used to lower blood pressure are typically antihypertensives such as ACE inhibitors, beta-blockers, ARBs, calcium channel blockers, or diuretics—not antifungals like nystatin.

Relieving pain

💊 Nystatin does not have analgesic properties and does not work on pain pathways or inflammation.

💊 Pain relief is managed using analgesics such as NSAIDs, acetaminophen, or opioids, depending on severity—not antifungal agents.

Preventing bacterial infections

💊 Nystatin is not an antibiotic and is ineffective against bacteria, because its mechanism targets fungal cell membranes, not bacterial cell walls or processes.

💊 Bacterial infections require antibacterial drugs, such as penicillins, cephalosporins, or macrolides, not antifungal agents like nystatin.

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Answer 2

Correct Answers:

Diet-controlled Type 2 diabetes mellitus

Rationale :

💎 Metoprolol is a beta-1 adrenergic blocker that can mask the typical symptoms of hypoglycemia, especially tachycardia, in clients with diabetes.

💎 Clients with Type 2 diabetes mellitus who use only diet control might still experience episodes of low blood glucose, particularly if appetite or intake changes during illness.

💎 Because beta-blockers blunt the adrenergic response (shakiness, palpitations), the client may not recognize hypoglycemia until it becomes severe, increasing the risk of neuroglycopenic symptoms such as confusion or fainting.

💎 The nurse should therefore further investigate how well the client's blood glucose is monitored, their history of hypoglycemic episodes, and reinforce teaching about alternative signs of hypoglycemia (e.g., sweating, visual changes).

💎 This makes diet-controlled diabetes a priority safety concern that must be assessed and monitored closely when starting metoprolol therapy.

A history of left-sided heart failure

💎 Metoprolol is actually one of the preferred beta-blockers in carefully titrated doses for clients with chronic stable heart failure, as it reduces myocardial oxygen demand and improves survival.

💎 Rather than being a contraindication, left-sided heart failure is often an indication for beta-blocker therapy when the client is stable and monitored.

Recently treated bilateral pneumonia

💎 A past, successfully treated episode of pneumonia does not represent a specific or major risk with metoprolol use, especially if the client's respiratory status has returned to baseline.

💎 There is no direct, high-risk interaction between resolved pneumonia and beta-blockers that would require investigation over diabetes.

A concurrent prescription for tadalafil

💎 The serious interaction with tadalafil is with nitrates, causing profound hypotension; this risk is not typically associated with beta-blockers alone.

💎 While monitoring blood pressure is still important, tadalafil does not represent the same level of concern with metoprolol as diabetes-related hypoglycemia masking.

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Answer 3

Correct Answers:

"Notify the provider if you develop muscle cramps."
"Contact your provider if you gain 3 pounds or more in one day.”

Rationale :

"Notify the provider if you develop muscle cramps."

🔷 Furosemide is a loop diuretic that can cause significant loss of potassium and other electrolytes, leading to hypokalemia.

🔷 Muscle cramps, weakness, or fatigue can be early signs of electrolyte imbalance, especially low potassium, which can progress to dangerous cardiac dysrhythmias if unreported.

🔷 Teaching the client to notify the provider promptly if muscle cramps occur supports early detection and treatment, such as adjusting the dose, adding potassium supplements, or modifying diet.

🔷 This teaching is particularly important in a client with heart failure, where maintaining stable electrolytes is critical for safe cardiac function.

🔷 Emphasizing this sign empowers the client to participate in self-monitoring and prevents complications from diuretic therapy.

"Contact your provider if you gain 3 pounds or more in one day."

🔷 In heart failure, sudden weight gain often reflects fluid retention, not fat, and can signal worsening heart failure or inadequate diuretic effect.

🔷 A common teaching standard is to report a gain of 2–3 lb (about 1–1.5 kg) in 1 day or 5 lb in a week, because this suggests rapid fluid accumulation.

🔷 Even though furosemide helps remove excess fluid, HF can still decompensate if fluid intake, sodium intake, or disease progression overwhelm the diuretic effect.

🔷 Teaching the client to weigh daily, at the same time, same scale, same clothing, and to report rapid gains helps detect worsening HF before severe symptoms return.

🔷 This intervention supports early provider action, such as changing the diuretic dose or adjusting other HF therapies, reducing risk of hospital readmission.

"People commonly develop a rash with this medication."

🔷 While rash is a possible side effect of many medications, it is not a common or primary teaching point for furosemide.

🔷 The priority side effects to teach about loop diuretics are fluid and electrolyte imbalances, hypotension, and dehydration, not routine rash.

"There is no need to restrict sodium while taking this medication."

🔷 Clients with heart failure are usually advised to restrict sodium intake, because sodium promotes fluid retention, worsening edema and pulmonary congestion.

🔷 Saying there is no need to restrict sodium is unsafe and contradicts standard HF and diuretic management, which combine diuretics + low-sodium diet for best control.

"Take the medication at night."

🔷 Furosemide increases urine output, and taking it at night can cause nocturia, disrupting sleep and increasing fall risk when getting up to void.

🔷 It is typically recommended to take loop diuretics in the morning, and if twice daily, to take the second dose in the early afternoon, not at bedtime.

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Answer 4

Correct Answers:

There is an expected orange color of urine, saliva, sweat and tears
Monitor liver function while taking rifampin

Rationale :

“There is an expected orange color of urine, saliva, sweat and tears.”

🧪 Rifampin commonly causes orange or red-orange discoloration of body fluids, including urine, saliva, sweat, and tears.

🧪 This effect is harmless and expected, but it can be alarming to clients if they are not warned ahead of time.

🧪 The nurse should explain that this color change does not indicate bleeding or organ damage, but is simply a drug effect.

🧪 Clients who wear contact lenses should be told that rifampin can permanently stain soft lenses, so glasses may be preferred.

🧪 Clear teaching about body fluid discoloration improves medication adherence and prevents unnecessary anxiety.

“Monitor liver function while taking rifampin.”

🧪 Rifampin is hepatotoxic, meaning it can cause liver inflammation or injury, especially when combined with other hepatotoxic drugs (e.g., isoniazid, alcohol).

🧪 Clients taking rifampin should have liver function tests (LFTs) monitored periodically, especially AST, ALT, and bilirubin.

🧪 The nurse should teach the client to report signs of liver problems, such as jaundice, dark urine, fatigue, or right upper quadrant pain.

🧪 Early detection of elevated liver enzymes allows the provider to adjust or discontinue the drug before serious damage occurs.

🧪 Emphasizing liver monitoring helps keep TB treatment effective and safe over the long course of therapy.

“Consume alcohol in moderation while taking rifampin.”

🧪 Because rifampin is hepatotoxic, combining it with alcohol significantly increases the risk of liver damage.

🧪 Clients should be taught to avoid alcohol, not to use it “in moderation,” while on rifampin therapy.

“Skip doses if experiencing gastrointestinal upset.”

🧪 Skipping doses of rifampin can lead to treatment failure and drug resistance, especially in tuberculosis therapy.

🧪 GI upset should be reported so the provider can adjust the regimen, not managed by self-stopping doses.

“Crush the medication and mix it with food or beverage.”

🧪 Many rifampin formulations are meant to be swallowed whole, and altering them can affect absorption or stability.

🧪 Clients should follow the exact administration instructions on timing and form (often on an empty stomach) rather than crushing without guidance.

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Answer 5

Correct Answers:

Relief of cough due to minor throat and bronchial irritation

Rationale :

🫁 Guaifenesin is an expectorant used to relieve cough associated with minor upper respiratory infections, such as colds or bronchitis.

🫁 It works by loosening and thinning respiratory secretions, making mucus easier to cough up from the airway.

🫁 This helps convert a dry, non-productive cough into a more productive cough, clearing mucus from the throat and bronchial passages.

🫁 Guaifenesin is typically indicated for “cough due to minor throat and bronchial irritation”, which directly matches the wording in this option.

🫁 Patient teaching usually includes increasing fluid intake to enhance its mucolytic effect and better relieve cough.

“Treatment of bronchial constriction.”

🫁 Bronchial constriction is treated with bronchodilators (e.g., albuterol, theophylline), not with expectorants like guaifenesin.

🫁 Guaifenesin does not dilate bronchi, it only loosens mucus.

“Prevention of blood clots.”

🫁 Prevention of blood clots is the role of anticoagulants (e.g., heparin, warfarin), not guaifenesin.

🫁 Guaifenesin has no effect on coagulation or platelet function.

“Management of allergies.”

🫁 Allergies are typically treated with antihistamines or nasal steroids, not with expectorants.

🫁 Guaifenesin does not block histamine or treat allergic inflammation.

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Answer 6

Correct Answers:

Bronchodilation

Rationale :

🌬️ Theophylline is a methylxanthine bronchodilator that relaxes smooth muscle in the bronchi, leading to bronchodilation.

🌬️ It is used in asthma and COPD to improve airflow, reduce wheezing, and lessen shortness of breath.

🌬️ The drug works partly by inhibiting phosphodiesterase, increasing cAMP, and promoting smooth muscle relaxation in the airways.

🌬️ When effective, theophylline helps the client breathe more easily, tolerate activity better, and experience fewer bronchospastic episodes.

🌬️ Because of its narrow therapeutic range, serum levels are often monitored to ensure effective bronchodilation without toxicity (e.g., tremors, tachycardia, seizures).

“Sedation.”

🌬️ Theophylline is actually CNS-stimulating at higher levels and may cause insomnia, nervousness, or tremors, not sedation.

🌬️ Sedation is more associated with antihistamines, benzodiazepines, or opioids, not with methylxanthines.

“Increased blood pressure.”

🌬️ While theophylline can influence heart rate and CNS stimulation, its primary therapeutic goal is bronchodilation, not intentionally raising BP.

🌬️ Any BP changes are side effects, not the desired therapeutic action.

“Decreased heart rate.”

🌬️ Theophylline can actually cause tachycardia and palpitations at higher levels; it is not used to slow heart rate.

🌬️ Medications like beta-blockers are used to decrease heart rate, not theophylline.

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Answer 7

Correct Answers:

Serum potassium

Rationale :

💧 Furosemide is a loop diuretic that promotes excretion of sodium, chloride, and water, but also causes significant loss of potassium in the urine.

💧 This places the client at high risk for hypokalemia, which can lead to muscle weakness, cramps, and life-threatening cardiac dysrhythmias.

💧 For a client with heart failure, maintaining stable potassium is especially critical because many are also on cardiac drugs (e.g., digoxin) that are sensitive to potassium changes.

💧 Monitoring serum potassium allows the provider to adjust diuretic dose, add potassium supplements, or modify diet as needed.

💧 Careful potassium monitoring helps keep furosemide therapy effective and safe, preventing both volume overload and electrolyte-related complications.

“Serum cholesterol.”

💧 Furosemide does not primarily affect lipid metabolism, so serum cholesterol is not the key lab for monitoring this drug.

💧 Cholesterol is important for cardiovascular risk overall, but not the main safety/lab focus for loop diuretics.

“Serum triglyceride.”

💧 Again, triglycerides reflect lipid status, not specific furosemide safety.

💧 Loop diuretics are more associated with electrolyte and fluid balance, not triglyceride changes.

“Serum amylase.”

💧 Amylase is associated with pancreatic function, especially in pancreatitis, and is not routinely monitored with furosemide use.

💧 Furosemide is not known for causing pancreatic injury as a primary concern.

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Answer 8

Correct Answers:

Shake the MDI prior to administration.

Rationale :

🫁 Before each use, an MDI should be shaken to mix the medication evenly with the propellant in the canister.

🫁 Proper mixing ensures the patient receives a consistent, accurate dose of medication with each actuation.

🫁 If the inhaler is not shaken, the early puffs may deliver more propellant and less drug, reducing therapeutic effect.

🫁 Shaking is a key first step before exhaling fully, sealing lips on the mouthpiece, and inhaling the dose slowly and deeply.

🫁 Teaching correct technique, including shaking the MDI, maximizes drug delivery to the lungs and improves asthma/COPD control.

“Ask the client to hold their breath for 2 seconds after inhalation.”

🫁 Clients are typically instructed to hold their breath for about 10 seconds (or as long as comfortably possible), not just 2 seconds, to allow optimal deposition of medication in the lungs.

🫁 A brief 2-second hold does not allow enough time for the drug to settle in the lower airways.

“Ask the client to inhale the medication quickly for 1 second.”

🫁 Proper MDI use requires a slow, deep inhalation over about 3–5 seconds, not a quick 1-second inhale.

🫁 Fast inhalation increases medication impact on the oropharynx instead of the deep lungs.

“Wash the MDI canister in warm water after each use.”

🫁 The metal canister generally should not be washed, as excess moisture can interfere with dose delivery; only the plastic mouthpiece is cleaned periodically.

🫁 Washing after each use is unnecessary and could damage the device or limit proper dosing.

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Answer 9

Correct Answers:

Metronidazole

Rationale :

🦠 Metronidazole is a widely used antiprotozoal and antibacterial agent effective against organisms like Trichomonas vaginalis, Entamoeba histolytica, and Giardia lamblia.

🦠 It works by disrupting DNA synthesis in susceptible anaerobic organisms and protozoa, leading to cell death.

🦠 It is often prescribed for trichomoniasis, amoebiasis, and certain anaerobic bacterial infections, including some GI and pelvic infections.

🦠 Clients are usually taught to avoid alcohol while taking metronidazole because of a disulfiram-like reaction (flushing, vomiting, hypotension).

🦠 Because of its broad antiprotozoal coverage, metronidazole is a classic exam answer when asked about “commonly used antiprotozoal” medications.

“Amoxicillin.”

🦠 Amoxicillin is a broad-spectrum penicillin antibiotic used to treat bacterial infections, not protozoal infections.

🦠 It targets bacterial cell wall synthesis, which protozoa do not have.

“Ibuprofen.”

🦠 Ibuprofen is a nonsteroidal anti-inflammatory drug (NSAID) used for pain, fever, and inflammation, not for infection.

🦠 It has no antimicrobial activity against bacteria or protozoa.

“Lisinopril.”

🦠 Lisinopril is an ACE inhibitor used for hypertension and heart failure, not as an antiprotozoal.

🦠 It acts via the renin–angiotensin–aldosterone system, not on microbes.

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Answer 10

Correct Answers:

The medication will prevent wheezing.
The medication will open the airways.

Rationale :

The medication will prevent wheezing.

🫁 Albuterol is a short-acting beta₂-adrenergic agonist (SABA) that relaxes bronchial smooth muscle, relieving bronchospasm.

🫁 By preventing and relieving bronchospasm, it helps prevent episodes of wheezing, tight chest, and shortness of breath.

🫁 It is used as a rescue inhaler for quick relief of acute symptoms and can also be used before exercise to help prevent exercise-induced bronchospasm.

🫁 When used properly, patients generally notice less wheezing and easier breathing during asthma exacerbations.

🫁 Teaching that albuterol helps prevent or reduce wheezing clarifies its role as a bronchodilator and rescue medication.

The medication will open the airways.

🫁 Albuterol directly opens the airways by causing bronchodilation via beta₂ receptor activation.

🫁 This effect increases airflow into and out of the lungs, improving oxygenation and comfort.

🫁 The client will usually feel less chest tightness and be able to inhale and exhale more deeply after using the inhaler.

🫁 As a result, albuterol is a cornerstone in the rapid relief of asthma symptoms.

🫁 Emphasizing that it “opens the airways” helps the client understand why it is used during acute attacks or before triggers.

The medication will decrease coughing episodes.

🫁 While bronchodilation can sometimes indirectly reduce cough related to bronchospasm, albuterol is not primarily an antitussive.

🫁 Cough may persist due to mucus, irritation, or infection, even with proper albuterol use.

The medication will increase the amount of mucus.

🫁 Albuterol does not increase mucus production; its action is on smooth muscle, not on mucus glands.

🫁 In fact, by opening airways, it can help clear existing mucus, but it does not create more.

The medication will reduce inflammation.

🫁 Airway inflammation in asthma is primarily treated with inhaled corticosteroids, not albuterol.

🫁 Albuterol targets bronchoconstriction, not the underlying inflammatory process.

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Custom VN230 Pharmacology Quiz 7

No.

1 :
What is the primary use of nystatin?

2 :
A nurse is reviewing the medical record of a client who has hypertension and a new prescription for metoprolol. Which of the following findings should the nurse investigate further?

3 :
A nurse is assisting with the care of a client on a medical-surgical unit.

Answer Options

4 :
What is an important aspect of patient teaching for individuals taking rifampin? (Select All that Apply.)

5 :
What is an indication for the use of guaifenesin?

6 :
What is a therapeutic effect of theophylline?

7 :
A nurse is caring for a client who is receiving furosemide to treat heart failure. Which of the following laboratory values should the nurse monitor for this client?

8 :
A nurse is preparing to administer a metered dose inhaler (MDI) medication to a client. Which of the following actions should the nurse take?

9 :
Which medication is commonly used as an antiprotozoal?

10 :
A nurse is caring for a client who has asthma. The client asks the nurse how albuterol helps his breathing. Which of the following information should the nurse include in the response? (Select all that apply.)

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Custom VN230 Pharmacology Quiz 7

No.

1 : What is the primary use of nystatin?

2 : A nurse is reviewing the medical record of a client who has hypertension and a new prescription for metoprolol. Which of the following findings should the nurse investigate further?

3 : A nurse is assisting with the care of a client on a medical-surgical unit.

Answer Options

4 : What is an important aspect of patient teaching for individuals taking rifampin? (Select All that Apply.)

5 : What is an indication for the use of guaifenesin?

6 : What is a therapeutic effect of theophylline?

7 : A nurse is caring for a client who is receiving furosemide to treat heart failure. Which of the following laboratory values should the nurse monitor for this client?

8 : A nurse is preparing to administer a metered dose inhaler (MDI) medication to a client. Which of the following actions should the nurse take?

9 : Which medication is commonly used as an antiprotozoal?

10 : A nurse is caring for a client who has asthma. The client asks the nurse how albuterol helps his breathing. Which of the following information should the nurse include in the response? (Select all that apply.)

1 :
What is the primary use of nystatin?

2 :
A nurse is reviewing the medical record of a client who has hypertension and a new prescription for metoprolol. Which of the following findings should the nurse investigate further?

3 :
A nurse is assisting with the care of a client on a medical-surgical unit.

4 :
What is an important aspect of patient teaching for individuals taking rifampin? (Select All that Apply.)

5 :
What is an indication for the use of guaifenesin?

6 :
What is a therapeutic effect of theophylline?

7 :
A nurse is caring for a client who is receiving furosemide to treat heart failure. Which of the following laboratory values should the nurse monitor for this client?

8 :
A nurse is preparing to administer a metered dose inhaler (MDI) medication to a client. Which of the following actions should the nurse take?

9 :
Which medication is commonly used as an antiprotozoal?

10 :
A nurse is caring for a client who has asthma. The client asks the nurse how albuterol helps his breathing. Which of the following information should the nurse include in the response? (Select all that apply.)