NR511 Midterm Study Guide: (Latest 2026/2027 Update)
Differential Diagnosis & Primary Care | Dermatology, ENT,
Eye Disorders, Infectious Disease | Q&A | Grade A | 100%
Correct Verified Answers
Subject: Diagnostic Reasoning & Primary Care – HPI, Clinical Decision Making (Evidence-Based
Research, Clinical Practice Guidelines, Published Algorithms); Sensitivity & Specificity; Medicare Parts
A, B, C, D; NP Reimbursement (85% of physician fee); Third Party Payers; Dermatology (Candida,
Tinea, Impetigo, Cellulitis, Folliculitis, Atopic Dermatitis, Acne, Rosacea, Seborrheic Keratosis, Actinic
Keratosis, Malignant Melanoma, Lipoma, Scabies, Pediculosis, Furuncle, Warts); Eye Disorders
(Conjunctivitis-Viral/Bacterial/Allergic, Chalazion, Hordeolum, Blepharitis, Dry Eyes, Epiphora,
Subconjunctival Hemorrhage, Cataracts, Acute Angle-Closure Glaucoma); ENT (Otitis Externa, Otitis
Media, Sinusitis, Pharyngitis, Mononucleosis, Epiglottitis, Peritonsillar Abscess, Hoarseness, Allergic
Rhinitis, Viral Rhinitis, Hearing Loss – Weber/Rinne tests, Tinnitus).
Source: NR511 Midterm Blueprint 2026/2027, AAFP, CDC, USPSTF, American Academy of
Dermatology, AAO-HNS.
Format: Q&A Guide with Clinical Rationale | Verified Answers | Grade A Guaranteed
T/F : The HPI is the breakdown of the client's chief complaint
Correct Answer: True
1. History of Present Illness (HPI) is a chronological description of the patient's chief complaint, including
onset, location, duration, character, aggravating/relieving factors, timing, and severity (OLDCARTS).
2. HPI is distinct from past medical history, family history, social history, and review of systems. It focuses
specifically on the events leading to the current visit.
What is needed to make sound clinical decision?
Correct Answer: Evidence-based research, clinical practice guidelines, published evidence-based
algorithms.
1. Evidence-based practice integrates best research evidence, clinical expertise, and patient values.
Guidelines and algorithms standardize care based on high-quality studies.
2. Examples: USPSTF recommendations, AAFP/CDC guidelines, specialty society protocols.
If a diagnostic study has ____________ specificity, then a _______ percentage of healthy people
will show a normal result
Correct Answer: high; high
1. Specificity = true negatives / (true negatives + false positives). High specificity means few false
positives. SPIN: Specific test rules IN disease when positive.
2. In primary care screening, high specificity reduces unnecessary anxiety and further testing from false
positives.
, A study with low specificity means a high number of _______ positives
Correct Answer: false
1. Low specificity → many healthy people test positive (false positives). Requires confirmatory testing
with a high specificity test.
2. Example: rapid strep test has high specificity but lower sensitivity; positive result is reliable, but
negative requires culture confirmation.
________ is the proportion of _____ positives out of all patients with a designated condition
Correct Answer: Sensitivity; true
1. Sensitivity = true positives / (true positives + false negatives). SNOUT: Sensitive test rules OUT
disease when negative (few false negatives).
2. High sensitivity is essential for screening tests to avoid missing disease (e.g., HIV ELISA has high
sensitivity).
Inpatient hospital stay, skilled nursing care, hospice, home care
Correct Answer: Medicare Part A
1. Part A is hospital insurance, funded by payroll taxes. Covers inpatient hospital stays (up to 90 days per
benefit period), skilled nursing facility (up to 100 days), hospice, and some home health.
2. No monthly premium for most beneficiaries (paid through payroll taxes during working years).
Outpatient services, provider visits, surgery, lab tests, medical equipment, preventative exams
Correct Answer: Medicare Part B
1. Part B is medical insurance, optional with monthly premium. Covers physician services, outpatient
procedures, durable medical equipment (DME), diagnostic tests, preventive services (vaccines,
screenings).
2. Typically covers 80% of approved amount; patient pays 20% (supplemental Medigap policies cover
this).
Wellness services, vision exams, hearing exams, eye glasses, hearing aids
Correct Answer: Medicare Part C (Medicare Advantage)
1. Part C is Medicare Advantage: private insurance plans that replace original Medicare (Parts A and B)
and often include Part D, plus extra benefits like vision, dental, hearing, wellness programs.
2. May have lower out-of-pocket costs but restricted networks (HMO/PPO).
Prescription Drugs
Correct Answer: Medicare Part D
1. Part D is outpatient prescription drug coverage through private insurance plans. Covers generic and
brand-name drugs.
2. Donut hole (coverage gap) has been phased out under the Inflation Reduction Act; also caps insulin
costs at $35/month.
Differential Diagnosis & Primary Care | Dermatology, ENT,
Eye Disorders, Infectious Disease | Q&A | Grade A | 100%
Correct Verified Answers
Subject: Diagnostic Reasoning & Primary Care – HPI, Clinical Decision Making (Evidence-Based
Research, Clinical Practice Guidelines, Published Algorithms); Sensitivity & Specificity; Medicare Parts
A, B, C, D; NP Reimbursement (85% of physician fee); Third Party Payers; Dermatology (Candida,
Tinea, Impetigo, Cellulitis, Folliculitis, Atopic Dermatitis, Acne, Rosacea, Seborrheic Keratosis, Actinic
Keratosis, Malignant Melanoma, Lipoma, Scabies, Pediculosis, Furuncle, Warts); Eye Disorders
(Conjunctivitis-Viral/Bacterial/Allergic, Chalazion, Hordeolum, Blepharitis, Dry Eyes, Epiphora,
Subconjunctival Hemorrhage, Cataracts, Acute Angle-Closure Glaucoma); ENT (Otitis Externa, Otitis
Media, Sinusitis, Pharyngitis, Mononucleosis, Epiglottitis, Peritonsillar Abscess, Hoarseness, Allergic
Rhinitis, Viral Rhinitis, Hearing Loss – Weber/Rinne tests, Tinnitus).
Source: NR511 Midterm Blueprint 2026/2027, AAFP, CDC, USPSTF, American Academy of
Dermatology, AAO-HNS.
Format: Q&A Guide with Clinical Rationale | Verified Answers | Grade A Guaranteed
T/F : The HPI is the breakdown of the client's chief complaint
Correct Answer: True
1. History of Present Illness (HPI) is a chronological description of the patient's chief complaint, including
onset, location, duration, character, aggravating/relieving factors, timing, and severity (OLDCARTS).
2. HPI is distinct from past medical history, family history, social history, and review of systems. It focuses
specifically on the events leading to the current visit.
What is needed to make sound clinical decision?
Correct Answer: Evidence-based research, clinical practice guidelines, published evidence-based
algorithms.
1. Evidence-based practice integrates best research evidence, clinical expertise, and patient values.
Guidelines and algorithms standardize care based on high-quality studies.
2. Examples: USPSTF recommendations, AAFP/CDC guidelines, specialty society protocols.
If a diagnostic study has ____________ specificity, then a _______ percentage of healthy people
will show a normal result
Correct Answer: high; high
1. Specificity = true negatives / (true negatives + false positives). High specificity means few false
positives. SPIN: Specific test rules IN disease when positive.
2. In primary care screening, high specificity reduces unnecessary anxiety and further testing from false
positives.
, A study with low specificity means a high number of _______ positives
Correct Answer: false
1. Low specificity → many healthy people test positive (false positives). Requires confirmatory testing
with a high specificity test.
2. Example: rapid strep test has high specificity but lower sensitivity; positive result is reliable, but
negative requires culture confirmation.
________ is the proportion of _____ positives out of all patients with a designated condition
Correct Answer: Sensitivity; true
1. Sensitivity = true positives / (true positives + false negatives). SNOUT: Sensitive test rules OUT
disease when negative (few false negatives).
2. High sensitivity is essential for screening tests to avoid missing disease (e.g., HIV ELISA has high
sensitivity).
Inpatient hospital stay, skilled nursing care, hospice, home care
Correct Answer: Medicare Part A
1. Part A is hospital insurance, funded by payroll taxes. Covers inpatient hospital stays (up to 90 days per
benefit period), skilled nursing facility (up to 100 days), hospice, and some home health.
2. No monthly premium for most beneficiaries (paid through payroll taxes during working years).
Outpatient services, provider visits, surgery, lab tests, medical equipment, preventative exams
Correct Answer: Medicare Part B
1. Part B is medical insurance, optional with monthly premium. Covers physician services, outpatient
procedures, durable medical equipment (DME), diagnostic tests, preventive services (vaccines,
screenings).
2. Typically covers 80% of approved amount; patient pays 20% (supplemental Medigap policies cover
this).
Wellness services, vision exams, hearing exams, eye glasses, hearing aids
Correct Answer: Medicare Part C (Medicare Advantage)
1. Part C is Medicare Advantage: private insurance plans that replace original Medicare (Parts A and B)
and often include Part D, plus extra benefits like vision, dental, hearing, wellness programs.
2. May have lower out-of-pocket costs but restricted networks (HMO/PPO).
Prescription Drugs
Correct Answer: Medicare Part D
1. Part D is outpatient prescription drug coverage through private insurance plans. Covers generic and
brand-name drugs.
2. Donut hole (coverage gap) has been phased out under the Inflation Reduction Act; also caps insulin
costs at $35/month.
