NR565 WEEK 4 MIDTERM EXAM REVIEW EXAMPLIFY ONLINE PROCTORED EXAM FOR AUGUST
2ND 2026 COMPLETE 100 ACTUAL EXAM QUESTIONS AND CORRECT ANSWERS (VERIFIED
ANSWERS) PLUS RATIONALES 2026 Q&A |LATEST EXAM UPDATE 2026/2027
SECTION ONE: QUESTIONS 1-100
A 45-year-old male with a history of hypertension presents for a routine follow-up. His current
medication regimen includes hydrochlorothiazide 25 mg daily. Lab results reveal a serum
potassium level of 3.2 mEq/L. Which of the following is the most appropriate next step in managing
this patient's pharmacotherapy?
A. Increase the dose of hydrochlorothiazide to 50 mg daily
B. Discontinue hydrochlorothiazide and initiate amlodipine 5 mg daily
🟢 C. Add lisinopril 10 mg daily to the current regimen
D. Initiate potassium chloride 10 mEq daily without altering the diuretic dose
🔴 RATIONALE: Thiazide diuretics like hydrochlorothiazide commonly cause hypokalemia. Adding
an ACE inhibitor like lisinopril helps conserve potassium because blocking angiotensin II reduces
aldosterone secretion, which decreases urinary potassium excretion while providing synergistic
blood pressure control.
When prescribing a fluoroquinolone such as ciprofloxacin, the advanced practice registered nurse
(APRN) must counsel the patient regarding black box warnings. Which serious adverse effect is
associated with this class of medication?
🟢 A. Tendon rupture and tendinopathy
B. Acute hepatic failure
C. Stevens-Johnson syndrome
D. QTc prolongation leading to Torsades de Pointes
🔴 RATIONALE: Fluoroquinolones carry a boxed warning for tendinitis and tendon rupture, which
can occur during therapy or up to several months after treatment discontinuation. Risk factors
include age over 60, concurrent corticosteroid use, and organ transplant recipients.
,An 18-year-old female presents requesting an oral contraceptive. She has a history of migraines
with aura. According to the U.S. Medical Eligibility Criteria for Contraceptive Use, which of the
following is the most appropriate recommendation?
A. Combined oral contraceptive pill with low-dose estrogen
B. Transdermal contraceptive patch
C. Vaginal contraceptive ring
🟢 D. Progestin-only pill
🔴 RATIONALE: Combined hormonal contraceptives (containing estrogen) are contraindicated
(Category 4) in women who experience migraines with aura due to an unacceptably high risk of
ischemic stroke. Progestin-only methods do not carry this systemic thromboembolic risk.
A patient is diagnosed with deep vein thrombosis (DVT) and initiated on warfarin therapy. The
APRN understands that bridging therapy with low-molecular-weight heparin (LMWH) is necessary
for which of the following reasons?
A. Warfarin takes immediate effect on clotting factors but lacks antiplatelet properties
🟢 B. Warfarin initially induces a hypercoagulable state by depleting proteins C and S
C. LMWH enhances the hepatic metabolism of warfarin to speed up its therapeutic onset
D. Bridging prevents the development of secondary thrombocytopenia caused by warfarin
🔴 RATIONALE: Warfarin inhibits production of vitamin K-dependent clotting factors (II, VII, IX, X)
alongside anticoagulant proteins C and S. Because proteins C and S have shorter half-lives, they
decline first, creating a transient prothrombotic window. Heparin bridging prevents thrombus
extension until a therapeutic INR is reached.
Which of the following statements best describes the mechanism of action of metformin in the
management of Type 2 Diabetes Mellitus?
🟢 A. It decreases hepatic glucose production and improves insulin sensitivity
B. It stimulates insulin secretion from pancreatic beta cells via potassium channels
,C. It slows gastric emptying and suppresses postprandial glucagon secretion
D. It inhibits sodium-glucose co-transporter 2 in the proximal renal tubules
🔴 RATIONALE: Metformin is a biguanide that lowers blood glucose primarily by decreasing
hepatic gluconeogenesis and increasing peripheral glucose uptake by improving insulin sensitivity.
It does not stimulate insulin secretion and therefore carries a low risk of hypoglycemia.
A 62-year-old male is being treated for chronic stable angina. He is prescribed sublingual
nitroglycerin for acute chest pain. He is also seeking treatment for erectile dysfunction. Which
medication is strictly contraindicated due to the risk of severe hypotension?
A. Alprostadil
🟢 B. Sildenafil
C. Finasteride
D. Tamsulosin
🔴 RATIONALE: Phosphodiesterase-5 (PDE-5) inhibitors like sildenafil potentiate the vasodilatory
effects of organic nitrates by augmenting cyclic GMP accumulation. Concurrent use can lead to
catastrophic, life-threatening drops in blood pressure.
An APRN is reviewing the laboratory results of a patient taking amiodarone for atrial fibrillation.
Which monitoring parameter must be checked periodically due to amiodarone’s high iodine content
and tissue accumulation?
A. Serum amylase
B. Complete blood count
🟢 C. Thyroid stimulating hormone
D. Serum uric acid
🔴 RATIONALE: Amiodarone contains significant amounts of structural iodine and can induce
either hypothyroidism (amiodarone-induced hypothyroidism) or hyperthyroidism. Baseline and
periodic monitoring (every 6 months) of thyroid function tests (TSH) is mandatory.
, A 29-year-old pregnant woman in her second trimester requires treatment for a severe urinary tract
infection. Which of the following antimicrobials is contraindicated during pregnancy due to the risk
of cartilage damage in the fetus?
A. Amoxicillin
B. Nitrofurantoin
🟢 C. Levofloxacin
D. Cephalexin
🔴 RATIONALE: Fluoroquinolones like levofloxacin are generally avoided during pregnancy
because animal studies have demonstrated a risk of arthropathy and cartilage damage in weight-
bearing joints of developing fetuses.
A patient with a history of severe penicillin allergy (anaphylaxis) requires antibiotic treatment for a
skin and soft tissue infection. Which of the following agents would be safest to prescribe without
crossing-reactivity risks?
🟢 A. Clindamycin
B. Cephalexin
C. Amoxicillin-clavulanate
D. Cefdinir
🔴 RATIONALE: Clindamycin is a lincosamide antibiotic structurally distinct from beta-lactams. It
carries zero cross-reactivity risk in patients with IgE-mediated penicillin allergies, unlike
cephalosporins (cephalexin, cefdinir) which carry a small but notable risk of cross-reactivity.
A 70-year-old patient with stage 3 chronic kidney disease (CKD) requires pain management for
osteoarthritis. Which medication should the APRN avoid due to risks of accelerating renal decline
and causing fluid retention?
A. Acetaminophen
B. Tramadol
2ND 2026 COMPLETE 100 ACTUAL EXAM QUESTIONS AND CORRECT ANSWERS (VERIFIED
ANSWERS) PLUS RATIONALES 2026 Q&A |LATEST EXAM UPDATE 2026/2027
SECTION ONE: QUESTIONS 1-100
A 45-year-old male with a history of hypertension presents for a routine follow-up. His current
medication regimen includes hydrochlorothiazide 25 mg daily. Lab results reveal a serum
potassium level of 3.2 mEq/L. Which of the following is the most appropriate next step in managing
this patient's pharmacotherapy?
A. Increase the dose of hydrochlorothiazide to 50 mg daily
B. Discontinue hydrochlorothiazide and initiate amlodipine 5 mg daily
🟢 C. Add lisinopril 10 mg daily to the current regimen
D. Initiate potassium chloride 10 mEq daily without altering the diuretic dose
🔴 RATIONALE: Thiazide diuretics like hydrochlorothiazide commonly cause hypokalemia. Adding
an ACE inhibitor like lisinopril helps conserve potassium because blocking angiotensin II reduces
aldosterone secretion, which decreases urinary potassium excretion while providing synergistic
blood pressure control.
When prescribing a fluoroquinolone such as ciprofloxacin, the advanced practice registered nurse
(APRN) must counsel the patient regarding black box warnings. Which serious adverse effect is
associated with this class of medication?
🟢 A. Tendon rupture and tendinopathy
B. Acute hepatic failure
C. Stevens-Johnson syndrome
D. QTc prolongation leading to Torsades de Pointes
🔴 RATIONALE: Fluoroquinolones carry a boxed warning for tendinitis and tendon rupture, which
can occur during therapy or up to several months after treatment discontinuation. Risk factors
include age over 60, concurrent corticosteroid use, and organ transplant recipients.
,An 18-year-old female presents requesting an oral contraceptive. She has a history of migraines
with aura. According to the U.S. Medical Eligibility Criteria for Contraceptive Use, which of the
following is the most appropriate recommendation?
A. Combined oral contraceptive pill with low-dose estrogen
B. Transdermal contraceptive patch
C. Vaginal contraceptive ring
🟢 D. Progestin-only pill
🔴 RATIONALE: Combined hormonal contraceptives (containing estrogen) are contraindicated
(Category 4) in women who experience migraines with aura due to an unacceptably high risk of
ischemic stroke. Progestin-only methods do not carry this systemic thromboembolic risk.
A patient is diagnosed with deep vein thrombosis (DVT) and initiated on warfarin therapy. The
APRN understands that bridging therapy with low-molecular-weight heparin (LMWH) is necessary
for which of the following reasons?
A. Warfarin takes immediate effect on clotting factors but lacks antiplatelet properties
🟢 B. Warfarin initially induces a hypercoagulable state by depleting proteins C and S
C. LMWH enhances the hepatic metabolism of warfarin to speed up its therapeutic onset
D. Bridging prevents the development of secondary thrombocytopenia caused by warfarin
🔴 RATIONALE: Warfarin inhibits production of vitamin K-dependent clotting factors (II, VII, IX, X)
alongside anticoagulant proteins C and S. Because proteins C and S have shorter half-lives, they
decline first, creating a transient prothrombotic window. Heparin bridging prevents thrombus
extension until a therapeutic INR is reached.
Which of the following statements best describes the mechanism of action of metformin in the
management of Type 2 Diabetes Mellitus?
🟢 A. It decreases hepatic glucose production and improves insulin sensitivity
B. It stimulates insulin secretion from pancreatic beta cells via potassium channels
,C. It slows gastric emptying and suppresses postprandial glucagon secretion
D. It inhibits sodium-glucose co-transporter 2 in the proximal renal tubules
🔴 RATIONALE: Metformin is a biguanide that lowers blood glucose primarily by decreasing
hepatic gluconeogenesis and increasing peripheral glucose uptake by improving insulin sensitivity.
It does not stimulate insulin secretion and therefore carries a low risk of hypoglycemia.
A 62-year-old male is being treated for chronic stable angina. He is prescribed sublingual
nitroglycerin for acute chest pain. He is also seeking treatment for erectile dysfunction. Which
medication is strictly contraindicated due to the risk of severe hypotension?
A. Alprostadil
🟢 B. Sildenafil
C. Finasteride
D. Tamsulosin
🔴 RATIONALE: Phosphodiesterase-5 (PDE-5) inhibitors like sildenafil potentiate the vasodilatory
effects of organic nitrates by augmenting cyclic GMP accumulation. Concurrent use can lead to
catastrophic, life-threatening drops in blood pressure.
An APRN is reviewing the laboratory results of a patient taking amiodarone for atrial fibrillation.
Which monitoring parameter must be checked periodically due to amiodarone’s high iodine content
and tissue accumulation?
A. Serum amylase
B. Complete blood count
🟢 C. Thyroid stimulating hormone
D. Serum uric acid
🔴 RATIONALE: Amiodarone contains significant amounts of structural iodine and can induce
either hypothyroidism (amiodarone-induced hypothyroidism) or hyperthyroidism. Baseline and
periodic monitoring (every 6 months) of thyroid function tests (TSH) is mandatory.
, A 29-year-old pregnant woman in her second trimester requires treatment for a severe urinary tract
infection. Which of the following antimicrobials is contraindicated during pregnancy due to the risk
of cartilage damage in the fetus?
A. Amoxicillin
B. Nitrofurantoin
🟢 C. Levofloxacin
D. Cephalexin
🔴 RATIONALE: Fluoroquinolones like levofloxacin are generally avoided during pregnancy
because animal studies have demonstrated a risk of arthropathy and cartilage damage in weight-
bearing joints of developing fetuses.
A patient with a history of severe penicillin allergy (anaphylaxis) requires antibiotic treatment for a
skin and soft tissue infection. Which of the following agents would be safest to prescribe without
crossing-reactivity risks?
🟢 A. Clindamycin
B. Cephalexin
C. Amoxicillin-clavulanate
D. Cefdinir
🔴 RATIONALE: Clindamycin is a lincosamide antibiotic structurally distinct from beta-lactams. It
carries zero cross-reactivity risk in patients with IgE-mediated penicillin allergies, unlike
cephalosporins (cephalexin, cefdinir) which carry a small but notable risk of cross-reactivity.
A 70-year-old patient with stage 3 chronic kidney disease (CKD) requires pain management for
osteoarthritis. Which medication should the APRN avoid due to risks of accelerating renal decline
and causing fluid retention?
A. Acetaminophen
B. Tramadol
