NAPLEX Online Practice Questions and Answers

Which of the following illnesses is an example of a type III hypersensitivity reaction?

A. Lupus

B. Graves disease

C. Hashiomoto's thyroiditis

D. Allergic rhinitis

E. Myasthenia gravis

LN is 84 YOM who is in hospital for a back surgery. His height is 5 feet and 4 inches, weight 85 kg and NKDA.

His past medical history includes hypertension, diabetes mellitus, major depression, hypothyroidism and chronic back pain. Post-op day 1, LN's medication includes Dexamethasone 8 mg iv q6h with taper dosing, Ondansetron 4mg iv q6h prn for N/V, Levothyroxine 0.075 mg po daily, Lisinopril 10mg po daily, Citalopram 20mg po daily, Docusate sodium / Senna 1 tab po twice a day, Bisacodyl 10mg suppository daily prn for constipation, Famotidine 20mg iv q12hr, Metoclopramide 10mg iv q6h, Metformin 500mg po bid, D51/2NS with 20K at 125mls/hour and Hydromorphone PCA at 0.2mg/hour of basal rate, demand dose 0.1mg. lock-out every 6min, one hour limit 2.2mg/hour. Pertinent morning labs includes serum creatinine 1.4mg/dl, Mg 1.5mg/dl, K 5.0mmol/L, Na 135 mmol/L.

Which of the following medication may cause psychotic episode such as emotional lability, hallucinations, mania, mood swings and schizophrenic reasons?

A. Lisinopril

B. Dexamethasone

C. Famotidine

D. Metoclopramide

E. Hydromorphone

LN is 84 YOM who is in hospital for a back surgery. His height is 5 feet and 4 inches, weight 85 kg and NKDA.

His past medical history includes hypertension, diabetes mellitus, major depression, hypothyroidism and chronic back pain. Post-op day 1, LN's medication includes Dexamethasone 8mg iv q6h with taper dosing, Ondansetron 4mg iv q6h prn for N/V, Levothyroxine 0.075mg po daily, Lisinopril 10mg po daily, Citalopram 20mg po daily, Docusate sodium / Senna 1 tab po twice a day, Bisacodyl 10mg suppository daily prn for constipation, Famotidine 20mg iv q12hr, Metoclopramide 10mg iv q6h, Metformin 500mg po bid, D51/2NS with 20K at 125mls/hour and Hydromorphone PCA at 0.2mg/hour of basal rate, demand dose 0.1mg. lockout every 6min, one hour limit 2.2mg/hour. Pertinent morning labs includes serum creatinine 1.4mg/dl, Mg 1.5mg/dl, K 5.0mmol/L, Na 135mmol/L.

LN used 5 on-demand bolus doses from the hydromorphone PCA, how much hydromorphone did the patient get in 24 hours?

A. 10mg

B. 5.3mg

C. 4.8mg

D. 0.5mg

E. 52.8mg

If LN receives Dextrose 5% half Normal Saline with 20 meq of Potassium as IVF at 125mls/hour. How much dextrose is he getting in 24hrs?

A. 300gm

B. 500gm

C. 50gm

D. 150gm

E. 200gm

What is the Osmolarity in mOsm/L of 40mEq of KCl in 100ml sterile water? (Molecular weight of KCl is 74.5gm/mol.)?

A. 400mOsm/L

B. 800mOsm/L

C. 80mOsm/L

D. 200mOsm/L

E. 1600mOsm/L

If a patient takes 0.5mg of intravenous hydromorphone every 4hrs what would be the equivalent orals total daily dose? Hydromorphone oral to parenteral ratio 7.5:1.5.

A. 15mg

B. 20mg

C. 10mg

D. 5mg

E. 7.5mg

Concomitant use of warfarin and omeprazole is associated with increased INR and prothrombin time(PT). What enzyme dose the omeprazole inhibits that is metabolized by warfarin?

A. CYP3A4

B. CYP2C9

C. CYP2C19

D. CYP2D9

E. CYP1A2

Calculate the Osmolarity of 3% hypertonic saline?

A. 1026 mOsmol/L

B. 76.9mOsmol/L

C. 287 mOsm/L

D. 565 mOsm/L

E. 327 mOsm/L

Which of these ranges reflects normal serum creatinine levels?

A. 0.2 - 0.5 mg/dL

B. 0.6 - 1.2 mg/dL

C. 1.5 - 2.0 mg/dL

D. 2.4 - 3.2 mg/dL

E. 3.5 - 5.0 mg/dL

Before use, which of the following products should be used to clean surfaces of a laminar flow hood?

A. 95% ethyl alcohol

B. 70% isopropyl alcohol

C. Purified water

D. Purified WFI