MN580 FINAL EXAM ACTUAL EXAM COMPLETE QUESTIONS AND
CORRECT DETAILED ANSWERS WITH RATIONALES (VERIFIED
ANSWERS) |ALREADY GRADED A+
Question 1
The most common reason for precocious puberty in girls is:
A) Adrenal hyperplasia
B) Ovarian tumor
C) Central nervous system tumor
D) Early onset of normal puberty
E) Hypothyroidism
Correct Answer: D) Early onset of normal puberty
Rationale: The most frequent cause of precocious puberty in girls is idiopathic or
constitutional precocious puberty, which is essentially an early but otherwise normal
pubertal process. This is often referred to as early onset of normal puberty and is a
diagnosis of exclusion after ruling out pathological causes.
Question 2
When billing Medicaid, Nurse Practitioners (NPs) obtain the authority to bill their services from:
A) The American Nurses Association (ANA) guidelines
B) Institutional hospital policies
C) State and federal law
D) National certification bodies
E) Individual physician oversight
Correct Answer: C) State and federal law
Rationale: Nurse Practitioners' scope of practice, including their ability to bill for services,
is primarily governed by state and nurse practice acts, as well as relevant federal
regulations, particularly for programs like Medicaid and Medicare.
Question 3
You have initiated therapy for an 18-year-old male with acne vulgaris and have prescribed
doxycycline. He returns in 3 weeks, complaining that his skin is no better. Your next action is to:
A) Increase the dose of doxycycline.
B) Add a topical retinoid to his regimen.
C) Switch him to a different oral antibiotic.
D) Counsel him that 6-8 weeks of treatment is often needed before significant improvement is
achieved.
E) Refer him to a dermatologist immediately.
Correct Answer: D) Counsel him that 6-8 weeks of treatment is often needed before
significant improvement is achieved
Rationale: Oral antibiotics like doxycycline for acne vulgaris typically require a sustained
period of treatment, often 6-8 weeks or even longer, before significant clinical improvement
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is evident. It is important to educate patients on this timeline to manage expectations and
ensure adherence.
Question 4
For a Grade I ankle sprain, weight-bearing should be avoided for at least:
A) 6 hours
B) 12 hours
C) 24 hours
D) 48 hours
E) 72 hours
Correct Answer: C) 24 hours
Rationale: For a Grade I ankle sprain, initial management often involves RICE (Rest, Ice,
Compression, Elevation). Avoiding weight-bearing for at least 24 hours helps to reduce
inflammation and prevent further injury to the ligament, allowing for initial healing.
Question 5
Hemoglobin A1c best provides information on glucose control over the past:
A) 1-7 days
B) 7-14 days
C) 21-47 days
D) 60-90 days
E) 120 days
Correct Answer: D) 60-90 days
Rationale: Hemoglobin A1c reflects the average blood glucose levels over the lifespan of red
blood cells, which is typically about 120 days. Therefore, it provides an estimate of glycemic
control over the preceding 2-3 months (approximately 60-90 days).
Question 6
An 18-year-old male presents with periumbilical pain, vomiting, and abdominal cramping over
the past 48 hours. Physical examination reveals rebound tenderness and laboratory analysis
shows the presence of bandemia and a total WBC of 28,000. To support the diagnosis of acute
appendicitis with suspected appendiceal rupture, you consider obtaining the following:
A) Abdominal ultrasound
B) Plain abdominal X-ray
C) Barium enema
D) CT scan
E) Upper endoscopy
Correct Answer: D) CT scan
Rationale: Given the signs and symptoms (periumbilical pain migrating, vomiting, rebound
tenderness, elevated WBC with bandemia) suggestive of acute appendicitis and the concern
,[Type here]
for rupture, a CT scan of the abdomen and pelvis is the most sensitive and specific
diagnostic imaging modality to confirm the diagnosis, assess for complications like rupture
or abscess, and rule out other conditions.
Question 7
A 2-year-old female presents with a 3-day history of fever, crankiness, and congested cough. Her
respiratory rate is more than 50% of the upper limits of normal for age. Tubular breath sounds
are noted at the right lung base. Skin turgor is normal, and she is wearing a wet diaper. She is
alert, resisting the examination as age-appropriate, and engages in eye contact. Temperature is
38.3°C. Her diagnostic evaluation should include:
A) Rapid strep test
B) Urine culture
C) Complete blood count (CBC)
D) Chest x-ray
E) Blood culture
Correct Answer: D) Chest x-ray
Rationale: The combination of fever, congested cough, elevated respiratory rate, and
localized tubular breath sounds at the right lung base in a 2-year-old strongly suggests
pneumonia. A chest x-ray is essential to confirm the diagnosis, identify the location and
extent of consolidation, and guide treatment.
Question 8
Aortic stenosis in a 15-year-old male is most commonly:
A) A result of rheumatic fever
B) Caused by severe atherosclerosis
C) A sequela of Kawasaki disease
D) A result of a congenital defect
E) Due to endocarditis
Correct Answer: D) A result of a congenital defect
Rationale: In adolescents, aortic stenosis is most commonly congenital, meaning the patient
was born with a bicuspid aortic valve or other structural abnormalities that lead to
narrowing over time. Acquired causes like rheumatic fever or atherosclerosis are less
common in this age group.
Question 9
Which of the following laboratory tests can identify the causative organism of bronchiolitis?
A) Complete blood count with differential
B) C-reactive protein (CRP)
C) Nasal washing antigen test
D) Blood culture
E) Sputum culture
, [Type here]
Correct Answer: C) Nasal washing antigen test
Rationale: Bronchiolitis is most commonly caused by Respiratory Syncytial Virus (RSV),
but other viruses can also be responsible. A nasal washing or nasopharyngeal aspirate with
antigen testing (e.g., for RSV, influenza, adenovirus) is the most effective method to identify
the specific viral pathogen.
Question 10
A Still murmur:
A) Is typically holosystolic.
B) Is loudest at the left sternal border.
C) Has a harsh, blowing quality.
D) Has a humming or vibratory quality.
E) Radiates widely to the back.
Correct Answer: D) Has a humming or vibratory quality
Rationale: A Still murmur is a common innocent (physiological) murmur found in children.
It is characterized by a low-pitched, vibratory, and often "musical" or "twanging string"
quality, typically heard best at the lower left sternal border or apex.
Question 11
A physiological murmur has which of the following characteristics?
A) It is always associated with symptoms like chest pain or syncope.
B) It is typically greater than Grade III/VI in intensity.
C) It becomes softer when the patient moves from supine to standing.
D) It often radiates widely to the neck or back.
E) It is usually pansystolic or holosystolic.
Correct Answer: C) It becomes softer when the patient moves from supine to standing
Rationale: Physiological (innocent) murmurs often change with position or respiration.
They tend to diminish in intensity or disappear when the patient moves from a supine to a
standing position or during a Valsalva maneuver, unlike many pathological murmurs.
Question 12
Cyclic vomiting may:
A) Always be associated with a severe headache.
B) Be triggered by specific foods.
C) Not be associated with a headache.
D) Necessarily indicate a gastrointestinal obstruction.
E) Always require surgical intervention.
Correct Answer: C) Not be associated with a headache
Rationale: While cyclic vomiting syndrome (CVS) can sometimes be associated with
migraines or headaches (especially in older children and adults), it is not a mandatory
CORRECT DETAILED ANSWERS WITH RATIONALES (VERIFIED
ANSWERS) |ALREADY GRADED A+
Question 1
The most common reason for precocious puberty in girls is:
A) Adrenal hyperplasia
B) Ovarian tumor
C) Central nervous system tumor
D) Early onset of normal puberty
E) Hypothyroidism
Correct Answer: D) Early onset of normal puberty
Rationale: The most frequent cause of precocious puberty in girls is idiopathic or
constitutional precocious puberty, which is essentially an early but otherwise normal
pubertal process. This is often referred to as early onset of normal puberty and is a
diagnosis of exclusion after ruling out pathological causes.
Question 2
When billing Medicaid, Nurse Practitioners (NPs) obtain the authority to bill their services from:
A) The American Nurses Association (ANA) guidelines
B) Institutional hospital policies
C) State and federal law
D) National certification bodies
E) Individual physician oversight
Correct Answer: C) State and federal law
Rationale: Nurse Practitioners' scope of practice, including their ability to bill for services,
is primarily governed by state and nurse practice acts, as well as relevant federal
regulations, particularly for programs like Medicaid and Medicare.
Question 3
You have initiated therapy for an 18-year-old male with acne vulgaris and have prescribed
doxycycline. He returns in 3 weeks, complaining that his skin is no better. Your next action is to:
A) Increase the dose of doxycycline.
B) Add a topical retinoid to his regimen.
C) Switch him to a different oral antibiotic.
D) Counsel him that 6-8 weeks of treatment is often needed before significant improvement is
achieved.
E) Refer him to a dermatologist immediately.
Correct Answer: D) Counsel him that 6-8 weeks of treatment is often needed before
significant improvement is achieved
Rationale: Oral antibiotics like doxycycline for acne vulgaris typically require a sustained
period of treatment, often 6-8 weeks or even longer, before significant clinical improvement
,[Type here]
is evident. It is important to educate patients on this timeline to manage expectations and
ensure adherence.
Question 4
For a Grade I ankle sprain, weight-bearing should be avoided for at least:
A) 6 hours
B) 12 hours
C) 24 hours
D) 48 hours
E) 72 hours
Correct Answer: C) 24 hours
Rationale: For a Grade I ankle sprain, initial management often involves RICE (Rest, Ice,
Compression, Elevation). Avoiding weight-bearing for at least 24 hours helps to reduce
inflammation and prevent further injury to the ligament, allowing for initial healing.
Question 5
Hemoglobin A1c best provides information on glucose control over the past:
A) 1-7 days
B) 7-14 days
C) 21-47 days
D) 60-90 days
E) 120 days
Correct Answer: D) 60-90 days
Rationale: Hemoglobin A1c reflects the average blood glucose levels over the lifespan of red
blood cells, which is typically about 120 days. Therefore, it provides an estimate of glycemic
control over the preceding 2-3 months (approximately 60-90 days).
Question 6
An 18-year-old male presents with periumbilical pain, vomiting, and abdominal cramping over
the past 48 hours. Physical examination reveals rebound tenderness and laboratory analysis
shows the presence of bandemia and a total WBC of 28,000. To support the diagnosis of acute
appendicitis with suspected appendiceal rupture, you consider obtaining the following:
A) Abdominal ultrasound
B) Plain abdominal X-ray
C) Barium enema
D) CT scan
E) Upper endoscopy
Correct Answer: D) CT scan
Rationale: Given the signs and symptoms (periumbilical pain migrating, vomiting, rebound
tenderness, elevated WBC with bandemia) suggestive of acute appendicitis and the concern
,[Type here]
for rupture, a CT scan of the abdomen and pelvis is the most sensitive and specific
diagnostic imaging modality to confirm the diagnosis, assess for complications like rupture
or abscess, and rule out other conditions.
Question 7
A 2-year-old female presents with a 3-day history of fever, crankiness, and congested cough. Her
respiratory rate is more than 50% of the upper limits of normal for age. Tubular breath sounds
are noted at the right lung base. Skin turgor is normal, and she is wearing a wet diaper. She is
alert, resisting the examination as age-appropriate, and engages in eye contact. Temperature is
38.3°C. Her diagnostic evaluation should include:
A) Rapid strep test
B) Urine culture
C) Complete blood count (CBC)
D) Chest x-ray
E) Blood culture
Correct Answer: D) Chest x-ray
Rationale: The combination of fever, congested cough, elevated respiratory rate, and
localized tubular breath sounds at the right lung base in a 2-year-old strongly suggests
pneumonia. A chest x-ray is essential to confirm the diagnosis, identify the location and
extent of consolidation, and guide treatment.
Question 8
Aortic stenosis in a 15-year-old male is most commonly:
A) A result of rheumatic fever
B) Caused by severe atherosclerosis
C) A sequela of Kawasaki disease
D) A result of a congenital defect
E) Due to endocarditis
Correct Answer: D) A result of a congenital defect
Rationale: In adolescents, aortic stenosis is most commonly congenital, meaning the patient
was born with a bicuspid aortic valve or other structural abnormalities that lead to
narrowing over time. Acquired causes like rheumatic fever or atherosclerosis are less
common in this age group.
Question 9
Which of the following laboratory tests can identify the causative organism of bronchiolitis?
A) Complete blood count with differential
B) C-reactive protein (CRP)
C) Nasal washing antigen test
D) Blood culture
E) Sputum culture
, [Type here]
Correct Answer: C) Nasal washing antigen test
Rationale: Bronchiolitis is most commonly caused by Respiratory Syncytial Virus (RSV),
but other viruses can also be responsible. A nasal washing or nasopharyngeal aspirate with
antigen testing (e.g., for RSV, influenza, adenovirus) is the most effective method to identify
the specific viral pathogen.
Question 10
A Still murmur:
A) Is typically holosystolic.
B) Is loudest at the left sternal border.
C) Has a harsh, blowing quality.
D) Has a humming or vibratory quality.
E) Radiates widely to the back.
Correct Answer: D) Has a humming or vibratory quality
Rationale: A Still murmur is a common innocent (physiological) murmur found in children.
It is characterized by a low-pitched, vibratory, and often "musical" or "twanging string"
quality, typically heard best at the lower left sternal border or apex.
Question 11
A physiological murmur has which of the following characteristics?
A) It is always associated with symptoms like chest pain or syncope.
B) It is typically greater than Grade III/VI in intensity.
C) It becomes softer when the patient moves from supine to standing.
D) It often radiates widely to the neck or back.
E) It is usually pansystolic or holosystolic.
Correct Answer: C) It becomes softer when the patient moves from supine to standing
Rationale: Physiological (innocent) murmurs often change with position or respiration.
They tend to diminish in intensity or disappear when the patient moves from a supine to a
standing position or during a Valsalva maneuver, unlike many pathological murmurs.
Question 12
Cyclic vomiting may:
A) Always be associated with a severe headache.
B) Be triggered by specific foods.
C) Not be associated with a headache.
D) Necessarily indicate a gastrointestinal obstruction.
E) Always require surgical intervention.
Correct Answer: C) Not be associated with a headache
Rationale: While cyclic vomiting syndrome (CVS) can sometimes be associated with
migraines or headaches (especially in older children and adults), it is not a mandatory
