Macrolide Quiz: Do You Know The -mycins?

1. A patient with renal impairment is prescribed azithromycin. Is dose adjustment necessary?

Yes, reduce dose by 50%

No, hepatic metabolism predominates

Yes, avoid use entirely

Only if creatinine clearance

Submit

3. Which condition is a contraindication for macrolide use due to risk of fatal arrhythmia?

Hypertension

Severe hepatic disease

Acute myocardial infarction with QT prolongation

Diabetes mellitus

4. Macrolides penetrate intracellularly and are effective against intracellular pathogens. True or False?

True

False

5. A patient takes macrolides and warfarin concurrently. What is the primary nursing concern?

Decreased warfarin effect

Increased bleeding risk from enhanced warfarin effect

Hyperkalemia

Hypoglycemia

6. Which macrolide has the most activity against Gram-negative organisms?

Erythromycin

Azithromycin

Clarithromycin

Spiramycin

7. Macrolides are contraindicated in patients with a history of QT prolongation. True or False?

True

False

8. A patient develops hepatotoxicity while on erythromycin estolate. Which liver function test is most elevated?

Alkaline phosphatase

Bilirubin

AST and ALT

Albumin

9. Which macrolide is most commonly used for respiratory tract infections due to superior lung penetration?

Erythromycin

Azithromycin

Roxithromycin

Spiramycin

10. Macrolides can cause C. difficile-associated diarrhea by disrupting normal flora. True or False?

True

False

11. Which of the following antibiotics is classified as a macrolide?

Azithromycin

Ciprofloxacin

Cephalexin

Vancomycin

12. Clarithromycin is a substrate of CYP3A4. Which medication interaction requires dose adjustment?

Warfarin

Tacrolimus

Metformin

Furosemide

13. Macrolides are effective for Mycoplasma pneumoniae infection. True or False?

True

False

14. A patient reports nausea and vomiting while taking erythromycin. Which gastrointestinal effect is this related to?

Motilin receptor agonism

Direct mucosal irritation

Bacterial overgrowth

Increased gastric pH

15. Which drug interaction is most significant when a patient takes macrolides with statins?

Increased statin levels and myopathy risk

Decreased statin efficacy

Hypoglycemia

Hypertension

16. Azithromycin is often chosen over other macrolides due to its pharmacokinetic advantage. What is this advantage?

Faster absorption

Longer half-life and tissue penetration

Lower protein binding

Renal elimination

17. A patient taking clarithromycin develops QT prolongation. Which cardiac complication is most concerning?

Atrial fibrillation

Torsades de pointes

Myocardial infarction

Heart block

18. Macrolides are effective against atypical organisms. Which pathogen is typically covered?

Legionella pneumophila

Pseudomonas aeruginosa

Clostridium difficile

Acinetobacter baumannii

19. A patient is prescribed erythromycin. Which condition is this macrolide commonly used to treat?

Community-acquired pneumonia

Urinary tract infections

Skin abscesses

Meningitis

20. Macrolides work by inhibiting bacterial protein synthesis. Which ribosomal subunit do they target?

30S subunit

50S subunit

60S subunit

70S subunit

Macrolide Quiz: Do You Know the -mycins?

1. A patient with renal impairment is prescribed azithromycin. Is dose adjustment necessary?

2.

What first name or nickname would you like us to use?

2. Azithromycin is typically dosed with a loading dose of ____ mg on day one.

3. Which condition is a contraindication for macrolide use due to risk of fatal arrhythmia?

4. Macrolides penetrate intracellularly and are effective against intracellular pathogens. True or False?

5. A patient takes macrolides and warfarin concurrently. What is the primary nursing concern?

6. Which macrolide has the most activity against Gram-negative organisms?

7. Macrolides are contraindicated in patients with a history of QT prolongation. True or False?

8. A patient develops hepatotoxicity while on erythromycin estolate. Which liver function test is most elevated?

9. Which macrolide is most commonly used for respiratory tract infections due to superior lung penetration?

10. Macrolides can cause C. difficile-associated diarrhea by disrupting normal flora. True or False?

11. Which of the following antibiotics is classified as a macrolide?

12. Clarithromycin is a substrate of CYP3A4. Which medication interaction requires dose adjustment?

13. Macrolides are effective for Mycoplasma pneumoniae infection. True or False?

14. A patient reports nausea and vomiting while taking erythromycin. Which gastrointestinal effect is this related to?

15. Which drug interaction is most significant when a patient takes macrolides with statins?

16. Azithromycin is often chosen over other macrolides due to its pharmacokinetic advantage. What is this advantage?

17. A patient taking clarithromycin develops QT prolongation. Which cardiac complication is most concerning?

18. Macrolides are effective against atypical organisms. Which pathogen is typically covered?

19. A patient is prescribed erythromycin. Which condition is this macrolide commonly used to treat?

20. Macrolides work by inhibiting bacterial protein synthesis. Which ribosomal subunit do they target?