Quiz 3 Concepts Flashcards
What is important to know when administering meds with a narrow therapeutic index?
there is a limited range between the therapeutic dose and the toxic dose so serum peak and trough levels have to be monitored
What can you do to make sure you are obtaining the most accurate culture?
obtain the specimen before antibiotic therapy begins
A pt. taking antibiotics develops mouth sores. What does this indicate and what should be done?
this indicates a superinfection but the drug does not need to be held
Cefazolin in high doses will increase what in a patient?
BUN, creatinine, AST, ALT, ALP, LDH, and bilirubin
What occurs with the frequent use of antibiotics?
frequent use of antibiotics increases exposure of bacteria and increases the bacteria’s resistance to those meds
What can occur if you skip a dose of an antibiotic?
skipping doses is incomplete treatment of an infection and the remaining bacteria may develop resistance
What can happen if you treat viral infections with antibiotics
it can cause resistance to develop from unneeded exposure
Macrolide
broad-spectrum antibacterial that treats whooping cough and Legionnaires disease
S: dysrhythmia, nausea, vomiting, diarrhea, ototoxicity
O: cardiac, GI, ear
C: proto is erythromycin, take on an empty stomach, advise the client to report palpitations, caution for pts. w/ liver or GI disorders
What can occur when taking macrolides in high doses with other hepatotoxic drugs?
it can cause hepatotoxicity so liver enzymes should be monitored
What can occur if macrolides are taking with warfarin?
it can increase the serum level
Why shouldn’t tetracyclines be given to children younger than 8 years old?
they irreversibly discolor the teeth
Tetracyclines
treat chlamydia and other gram-negative bacteria
S: nausea, vomiting, diarrhea, hepatotoxicity, suppressed bone growth
O: GI, liver, bones, integumentary
C: administer 1 hour before meals or 2 hours after but not before bedtime, caution for pregnant women and liver impairment
K: can interact with calcium and antacids, monitor for jaundice, not for pregnant women
What can high doses of tetracyclines cause?
nephrotoxicity
Gentamicin
an aminoglycoside that is a narrow spectrum and can treat e.coli and pneumonia, intake and output needs to be monitored for kidney function
When taking gentamicin and the pt. notices a change in urine output, what should occur?
notify the provider, and obtain the serum trough levels to make sure the drug is not at a toxic level
Aminoglycosides
treats e.coli and pneumonia
S: ototoxicity and nephrotoxicity
O: ear, kidney
C: proto is gentamicin, monitor for reports of tinnitus and vertigo, check I & O
K: ototoxicity is the biggest adverse effect
Fluoroquinolone
treat UTIs, protect from anthrax, and treats other bacterial infection
S: nausea, vomiting, diarrhea, dizziness, photosensitivity
O: GI, CNS, integumentary, skeletal
C: prototype is ciprofloxacin, monitor for CNS symptoms, decrease caffeine intake
What effects does fluoroquinolones have on blood sugar levels?
fluoroquinolones can increase the effect of oral hypoglycemic med so monitor glucose levels