NR 569 Advanced Pharmacology – NR 569 Midterm Exam Study Guide and Practice Material

NR 569 Midterm Exam (Latest Update
) Differential Diagnosis in
Acute Care Practicum | Questions &
Answers 100% Correct [Grade A]–
Chamberlain




Evaluation and Management (E/M) codes - correct answer Evaluation and

management (E/M) coding involves the use of CPT codes ranging from 99202-99499.

These represent services by a provider in which the provider is either evaluating or

managing a patient's health.




Evidence-Based Medicine - correct answer - The conscientious, explicit, judicious and

reasonable use of modern, best evidence in making decisions about the care of

individual patients.




PICOT question - correct answer - A mnemonic derived from the elements of a

clinical research question - Patient, Intervention, Comparison, Outcome and Time. The

, NR 569 Midterm Exam (Latest Update
) Differential Diagnosis in
Acute Care Practicum | Questions &
Answers 100% Correct [Grade A]–
Chamberlain


PICOT process begins with a case scenario, and the question is phrased to elicit an

answer.




Sensitivity - correct answer Sensitivity refers to a test's ability to designate an

individual with a disease as positive.

- A sensitive test correctly identifies patients do who have the disease in question.

Tests with high sensitivity are ideal screening tests to discover as many patients as

possible with the disease, frequently a tradeoff of increased false positive results.

**Confirmatory testing may require a more specific test.**




Sensitivity Formula - correct answer - To calculate sensitivity the number of patients

who do have the disease and test positive (true positive = TP) is divided by all who

have the disease, including those who falsely test negative (false negative = FN)

, NR 569 Midterm Exam (Latest Update
) Differential Diagnosis in
Acute Care Practicum | Questions &
Answers 100% Correct [Grade A]–
Chamberlain


- TP/(TPf+fFN)




Specificityf-fcorrectfanswerf-

Specificityfrefersftofthefabilityfofftestingftofrecognizefpatientsfwhofdofnotfhavefthefdiseas
f




e.

- Forfexample,fD-DimerfhasfhighfsensitivityfandfwillfbefpositivefinfmostfcasesfoffPE;

however,fthisfcomesfatfthefcostfoffafhighffalsefpositivefratefdueftoflowfspecificity.fAfconfir

matory,fmorefspecific,fimagingftestfmayfbefrequiredftofmakefthefdiagnosis.




SpecificityfFormulaf-fcorrectfanswerf-

Tofcalculatefspecificity,fthefnumberfoffpatientsfwhoftestfnegativefandfdofnotfhavefthefdis
f




easef(truefnegativef=fTN)fisfdividedfbyfthe

totalfnumberfwithoutfthefdisease,fincludingfthosefwhoffalselyftestfpositivef(falsefpositivef

=fFP).




- TN/(TN + FP)

, NR 569 Midterm Exam (Latest Update
) Differential Diagnosis in
Acute Care Practicum | Questions &
Answers 100% Correct [Grade A]–
Chamberlain



SPINf&fSNOUTf-

correctfanswerfSPecificftestfrulefINfdiseasef(SPIN)fwhilefSeNsitiveftestsfrulefOUTfdiseasef(
f




SNOUT).




PositivefPredictivefValuef(PPV)f-fcorrectfanswerf-fPositivefPredictivefValuef(PPV)

reportsfthefprobabilityfthatfafpatientfhasfthefdiseasefafterftestingfpositivefforfit.fPositivefp

redictivefvaluefisfmarkedlyfdependentfonfthefprevalencefoffthefdiseasefinfquestion.




- TP/(TPf+fFP)




NegativefPredictivefValuef(NPV)f-fcorrectfanswerf-

Negativefpredictivefvaluef(NPV)fdescribesfthefprobabilityfthatfafpatientfdoesfnotfhavefth
f




efdiseaseffollowingfa