Diagnostic Skills & Procedures for APN
Midterms Exam Review (Qns & Ans)
2025
1. Which diagnostic imaging technique is most appropriate for
detecting a pulmonary embolism?
a) Chest X-ray
b) MRI
c) CT pulmonary angiography (CTPA)
d) Ultrasound
Correct ANS: c) CT pulmonary angiography (CTPA)
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, Rationale: CT pulmonary angiography (CTPA) is the gold
standard imaging technique for detecting pulmonary embolism
due to its high sensitivity and specificity.
2. When performing a lumbar puncture, at which vertebral level is
the needle typically inserted?
a) L1-L2
b) L2-L3
c) L3-L4
d) L4-L5
Correct ANS: d) L4-L5
Rationale: The needle is typically inserted between the L4
and L5 vertebrae to avoid injury to the spinal cord, which usually
terminates at the L1-L2 level in adults.
Fill-in-the-Blank Questions
3. The ____________ test is used to diagnose deep vein
thrombosis (DVT) by assessing the presence of clot fragments in
the blood.
Correct ANS: D-dimer
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, Rationale: The D-dimer test detects clot fragments in the
blood and is used to diagnose conditions like deep vein
thrombosis (DVT) and pulmonary embolism.
4. ____________ is the preferred initial imaging modality for
evaluating suspected gallbladder disease.
Correct ANS: Ultrasound
Rationale: Ultrasound is the preferred initial imaging
modality for evaluating gallbladder disease due to its high
sensitivity and non-invasive nature.
True/False Questions
5. True or False: A complete blood count (CBC) is sufficient to
diagnose anemia without further testing.
Correct ANS: False
Rationale: While a complete blood count (CBC) can indicate
the presence of anemia, further testing is needed to determine the
underlying cause and type of anemia.
6. True or False: A positive Mantoux test (tuberculin skin test)
confirms active tuberculosis infection.
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, Correct ANS: False
Rationale: A positive Mantoux test indicates exposure to
Mycobacterium tuberculosis but does not differentiate between
latent and active infection. Further testing is required to confirm
active tuberculosis.
Multiple Response Questions
7. Which of the following are common indications for performing
an electrocardiogram (ECG)? (Select all that apply)
a) Chest pain
b) Shortness of breath
c) Palpitations
d) Hypertension
Correct ANSs: a) Chest pain, b) Shortness of breath, c)
Palpitations
Rationale: Common indications for performing an ECG
include chest pain, shortness of breath, and palpitations.
Hypertension is typically monitored through blood pressure
measurements, not ECG.
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