NR 568 Midterm Exam 1-100 correct Questions Proctored Via Examplify Chamberlain University With Correct Answers | 100% Pass Guaranteed |Graded A+ | 2026/2027

NR 568 Midterm Exam 1-100 correct Questions Proctored
Via Examplify Chamberlain University With Correct Answers
| 100% Pass Guaranteed |Graded A+ | 2026/2027




1. What is the primary mechanism of action of Penicillins?

 A) Inhibition of bacterial protein synthesis via the 30S ribosome
 B) Inhibition of bacterial cell wall synthesis by binding to penicillin-binding proteins
(PBPs)
 C) Disruption of bacterial DNA replication by inhibiting DNA gyrase
 D) Interference with folic acid synthesis
 Correct Answer: B

2. Which organ function must be monitored closely for a patient taking Penicillin due to
excretion pathways?

 A) Hepatic function
 B) Renal function
 C) Pancreatic function
 D) Pulmonary function
 Correct Answer: B

3. What is the primary therapeutic indication for Tetracyclines?

 A) Severe Pseudomonas infections
 B) Tetracycline-sensitive infections, severe acne, and periodontal disease
 C) Uncomplicated viral bronchitis
 D) Systemic candidiasis
 Correct Answer: B

4. In which of the following populations are Tetracyclines highly contraindicated?

 A) Geriatric patients over 65
 B) Adult patients with mild asthma

,  C) Pregnant women, breastfeeding mothers, and children under 8
 D) Patients with a history of penicillin allergy
 Correct Answer: C

5. Why are Tetracyclines contraindicated in children under the age of 8?

 A) They cause irreversible ototoxicity
 B) They can bind to calcium in developing teeth, causing permanent discoloration
 C) They cause severe, immediate respiratory depression
 D) They trigger premature fusion of the epiphyseal plates
 Correct Answer: B

6. Which of the following should NOT be administered at the same time as Tetracyclines
due to chelation risk?

 A) Orange juice and apples
 B) Calcium supplements, milk/dairy, and iron supplements
 C) Acetaminophen or Ibuprofen
 D) Vitamin B12 and Folic acid
 Correct Answer: B

7. What key patient education should be provided to a patient prescribed a Tetracycline?

 A) Avoid driving due to severe drowsy effects
 B) Take the medication with a high-fat meal to increase absorption
 C) Apply sunscreen and wear protective clothing due to severe phototoxicity
 D) Drink at least 4 ounces of alcohol to activate the drug
 Correct Answer: C

8. What is the boxed warning associated with Fluoroquinolones (e.g., Ciprofloxacin)?

 A) Severe hepatotoxicity and acute liver failure
 B) Prolonged bleeding and thrombocytopenia
 C) Increased risk of tendonitis, tendon rupture, peripheral neuropathy, and CNS effects
 D) Red Man Syndrome and rapid anaphylaxis
 Correct Answer: C

9. Which patient population is at the highest risk for tendon rupture when taking
Fluoroquinolones?

 A) Patients under 18 years of age
 B) Patients over 60 taking systemic corticosteroids
 C) Type 2 diabetic patients on metformin
 D) Patients with active asthma using albuterol inhalers
 Correct Answer: B

, 10. Why should Fluoroquinolones be avoided in patients with a history of myasthenia
gravis?

 A) They can cause severe renal crystallization
 B) They may exacerbate muscle weakness
 C) They completely block the effects of anticholinesterase drugs
 D) They trigger acute respiratory failure via the liver
 Correct Answer: B

11. What ECG change can be caused by Macrolides (e.g., Azithromycin) and
Fluoroquinolones?

 A) Shortened PR interval
 B) QT interval prolongation
 C) Tall, peaked T waves
 D) ST-segment depression in inferior leads
 Correct Answer: B

12. What is the drug of choice for treating a Group Alpha-hemolytic streptococcal infection
in a patient with a confirmed severe Penicillin allergy?

 A) Amoxicillin
 B) Cephalexin
 C) Erythromycin or Clindamycin
 D) Gentamicin
 Correct Answer: C

13. What is the mechanism of action of Aminoglycosides (e.g., Gentamicin)?

 A) They inhibit cell wall synthesis by binding to transpeptidase
 B) They inhibit bacterial protein synthesis by binding to the 30S ribosomal subunit
 C) They prevent RNA transcription by blocking RNA polymerase
 D) They disrupt the fungal cell membrane by binding to ergosterol
 Correct Answer: B

14. What are the two major toxicities associated with Aminoglycosides?

 A) Hepatotoxicity and cardiotoxicity
 B) Ototoxicity and Nephrotoxicity
 C) Bone marrow suppression and peripheral neuropathy
 D) Pulmonary fibrosis and tendonitis
 Correct Answer: B

15. Which of the following is considered a narrow-spectrum antibiotic?

 A) Imipenem