2025
NR 571 MIDTERM STUDY QUESTIONS 2025 WITH GUARANTEED ACCURATE
ANSWERS
What is high sensitivity troponin and when to use? - ACCURATE
ANSWERS✔✔ first line test for cardiac cell damage
Used for initial injury
What is CKMB - ACCURATE ANSWERS✔✔ CK isoenzyme specific
to cardiac muscle tissue (MI)
When should CKMB be used? - ACCURATE ANSWERS✔✔ for
suspicion of secondary ischemia after an initial infarct
Normal level for Troponin I - ACCURATE ANSWERS✔✔ <0.04
,Normal level for CKMB - ACCURATE ANSWERS✔✔ 3-5% of total
CK
What is BNP - ACCURATE ANSWERS✔✔ B-type natriuretic peptide
Normal BNP levels - ACCURATE ANSWERS✔✔ <100 pg/ml
Differential for chest pain - ACCURATE ANSWERS✔✔ Consider:
Myocardium- angina, MI, myocarditis, heart failure
Pericardium- pericarditis
Aorta- dissecting aortic aneurysm
Trachea and bronchi- bronchitis
Parietal pleura- pericarditis, pneumonia, pneumothorax, pleural effusion,
pulmonary embolus
Chest wall- costochondritis, herpes zoster
Esophagus- reflux, esophageal spasm, esophageal tear
Referred pain from elsewhere- cervical arthritis, biliary colic, gastritis
Psych: anxiety attacks
Revascularization in under ____ minutes - ACCURATE ANSWERS✔✔
90
,Initial diagnostics for chest pain - ACCURATE ANSWERS✔✔ 12-lead
EKG
Troponin q3h x3 at least
BNP - HF
CBC - baseline H&H and Plts
PTT, PT/INR - baseline coagulation status
BMP - renal function and lytes
TSH, Mg, and Phos
ECHO
Cath
Requirements for STEMI dx - ACCURATE ANSWERS✔✔ new ST
elevation in 2 contiguous leads of >0.1 mv except V2&V3
Elevated troponin
STEMI findings in V2-V3 - ACCURATE ANSWERS✔✔ >0.2mv in
>40yo M
>0.25 mv in <40 yo M
>0.15 mv in women
Difference between NSTEMI and unstable angina - ACCURATE
ANSWERS✔✔ NSTEMI involves Elevated Cardiac Bio markers (cell
death)
, NSTEMI & unstable angina tx - ACCURATE ANSWERS✔✔ Dual
antiplatelet therapy
Full-dose AC
High-intensity statin
BB
Nitrates
Oxygen
Pain medication
Dual antiplatelet therapy - ACCURATE ANSWERS✔✔ DAPT
Aspirin (325 x1 = daily 81mg)
AND
P2Y2 inhibitor
Clopidogrel or ticagrelor
Full dose AC - ACCURATE ANSWERS✔✔ SQ lovenox 1mg/kg BID
If PCI planned of low GFR use heparin gtt
50-70 units/kg bolus plus 12units/kg/hr titrated to PTT 1.5-2.5 x baseline
High-intensity statin - ACCURATE ANSWERS✔✔ atorvastatin 40-80
mg or rosuvastatin 20-40 mg