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NUR 340 Exam 3 Questions & 100% Correct Answers

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A nurse is preparing to administer the antibiotic for a hospitalized patient who acquired a Methicillin-resistant Staph. aureus (MRSA) infection. Based on the nurses' knowledge of antibiotics for the treatment of MRSA, which medication may be ordered? Vancomycin Neomycin Cefazolin Cef...

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  • 9 september 2024
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1 | P a g e | © copyright 2024/2025 | Grade A+




NUR 340 Exam 3 Questions & 100%
Correct Answers
A nurse is preparing to administer the antibiotic for a hospitalized patient who

acquired a Methicillin-resistant Staph. aureus (MRSA) infection. Based on the

nurses' knowledge of antibiotics for the treatment of MRSA, which medication may

be ordered?

Vancomycin

Neomycin

Cefazolin

Ceftaroline

Metronidazole

Piperacillin

✓ :~~ Answer: Vancomycin and ceftaroline




Rationale: Methicillin-resistant Staph. aureus(MRSA), highly resistant bacteria, are

resistant to all penicillins and all cephalosporins. Because most strains of MRSA are

multidrug resistant, many other antibiotics are ineffective, including tetracyclines,

clindamycin, trimethoprim/sulfamethoxazole, and beta-lactam agents (except

ceftaroline). Preferred drugs are IV vancomycin, linezolid [Zyvox], daptomycin

[Cubicin], telavancin [Vibativ], clindamycin, and ceftaroline. See Lehne p. 1017




Master01 | September, 2024/2025 | Latest update

, 2 | P a g e | © copyright 2024/2025 | Grade A+


A nurse transcribes a new prescription for potassium penicillin G given

intravenously (IV) q 8 hours and gentamicin IV q 12 hours. Which plan is the best

schedule for administering these drugs?

a.) penicillin at 0800, 1600, and 2400; gentamicin at 1200 and 2400

b.) penicillin at 0600, 1400, and 2200; gentamicin at 0600 and 1800

c.) penicillin at 0800, 1600, and 2400; gentamicin at 0600 and 1800

d.) penicillin at 0100, 0900, and 1700; gentamicin at 0900 and 1800


✓ :~~ Answer: C Rationale: Gentamicin should never be administered

concurrently with penicillin, because they will interact, and the penicillin

may inactivate the aminoglycoside. All options except A show concurrent

administration. See Lehne p. 1064




A patient who works as a landscaper is preparing to be discharged home.

Ciprofloxacin (Cipro) has been prescribed for outpatient therapy. Which of the

following will the nurse include in the discharge teaching for this patient?




"You may take the medication with milk of magnesia."

"Use sunscreen and protective clothing when outdoors."

"Take the medication with crackers and cheese."

"Take the medication until all symptoms subside."

✓ :~~ "Use sunscreen and protective clothing when outdoors."




Master01 | September, 2024/2025 | Latest update

, 3 | P a g e | © copyright 2024/2025 | Grade A+


Rationale: The patient, a landscaper, should be advised to wear sunscreen and

protective clothing when outdoors, because the medication may cause

phototoxicity. The medication should be taken until it is gone, not just until the

patient's symptoms are improved. Absorption of fluoroquinolones is reduced when

taken with a number of products including aluminum or magnesium containing

antacids and milk or other dairy products. See Lehne p. 1087




A hospitalized patient is receiving gentamicin (Garamycin) 80 mg IV twice daily for

acute osteomyelitis. Which data about the patient is most important for the nurse

to obtain before administering the gentamicin?




a.) oral temperature

b.) reports of nausea

c.) BUN and creatinine levels

d.) when an antacid was administered

✓ :~~ Answer: C

Rationale: Although the patient's temperature will be monitored on a regular basis

in the hospital, gentamicin is nephrotoxic and can cause renal failure. Therefore

monitoring renal function is critical. Nausea is not a common side effect of IV

gentamicin. Because the drug is administered IV, an antacid will not affect

absorption of the gentamicin.




Master01 | September, 2024/2025 | Latest update

, 4 | P a g e | © copyright 2024/2025 | Grade A+


A patient has acquired hospital-associated MRSA. Which drug does the nurse

anticipate will be ordered to treat this infection?




vancomycin (Vancocin)

TMP/SMZ (Bactrim)

imipenem (Primaxin)

azithromycin (Zithromax)


✓ :~~ Answer: Vancomycin




Rationale: MRSA is resistant to all penicillins and cephalosporins. These include

beta lactam antibiotics such as imipenem. Most strains of MRSA are also resistant

to many other antibiotics. The drug of choice is vancomycin although there are

others that may be used. TMP/SMZ is a preferred drug for community-acquired

MRSA. Azithromycin is a macrolide used for respiratory and skin infections as well

as other infections such as mycobacterium avium and chlamydia.




A patient who is receiving penicillin begins to wheeze and reports a feeling of

impending doom. Upon assessing the patient, the nurse finds a blood pressure of

88/47 mm Hg. and a weak pulse of 120 beats per minute. Which order will the

nurse implement first?




A.) administer 500 mL IV fluid bolus



Master01 | September, 2024/2025 | Latest update

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