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CPN EXAM 2024/2025 WITH 100% ACCURATE SOLUTIONS
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CPN EXAM 2024/2025 WITH 100% ACCURATE SOLUTIONS
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CPN EXAM 2024/2025 WITH 100% ACCURATESOLUTIONS
Hemolytic uremic syndrome (HUS) is a post-infectious disorder causing nephropathy,
hemolytic anemia, and thrombocytopenia. It is seen following upper respiratory illnesses and
following GI infections after eating meat contaminated with bacteria. What enteric bacteria
have been linked to HUS?
A. Escherichia coli O157:H7.
B. Clostridium difficile.
C. Rotavirus.
D. Vibrio cholera. - Precise Answer ✔✔A: E. coli O157:H7 from contaminated ground meat is the most
common bacterial cause of HUS although other bacteria, such as Shigella dysenteriae, may also cause
HUS.
Hypertension can be seen in the pediatric population. What is the most common cause of
secondary hypertension in children?
A. Coarctation of the aorta.
B. Renal disease.
C. Neuroblastomas.
D. Drug toxicity. - Precise Answer ✔✔B: Renal disease is the most common cause of secondary
hypertension in the pediatric population. Coarctation of the aorta, neuroblastoma, and drug toxicity are
less common causes of secondary hypertension. Primary hypertension is also on the rise, related to
obesity, lack of exercise, and poor nutrition
A 16-year-old female is brought into the ED with an intentional overdose of acetaminophen.
In order to prevent liver toxicity what medication can be given?
A. N-Acetylcysteine (Mucomyst).
B. Activated charcoal.
C. Ipecac syrup.
,D. Naloxone (Narcan). - Precise Answer ✔✔A: N-Acetylcysteine (Mucomyst) is the medication used for
acetaminophen overdoses. Toxicity occurs with dosage >140 mg/kg in one dose or >7.5g in 24 hours.
The 72-hour N- acetylcysteine (NAC) protocol includes 140 mg/kg initially and 70 mg/kg every 4 hours
for 17 more doses (orally or IV). Naloxone is used for opiate overdoses, and activated charcoal is used
for numerous other medication overdoses.
Following a severe motor vehicle accident, a 10-year-old male has a hemisection of the
spinal cord with associated ipsilateral weakness and loss of proprioception and contralateral
loss of pain and temperature sensation. What is this spinal cord syndrome called?
A. Anterior cord syndrome
B. Complete cord injury
C. Brown-Sequard syndrome
D. Posterior cord syndrome - Precise Answer ✔✔C: Hemisection of the spinal cord, severing it on one
side only, and its associated symptoms are referred to as Brown-Sequard syndrome. Anterior cord
syndrome results in loss of motor abilities and some sensations (temperature, pain, vibration) below
injury. Posterior cord syndrome retains motor functions but some sensation is lost below injury.
Complete cord injury results in bilateral paralysis and lack of sensation below injury.
A 2-year-old male inadvertently ingests some opiates from his parent's prescription
medication. Which of the following would NOT be a likely physical finding?
A. Decreased respiratory rate.
B. Lethargy.
C. Decreased bowel sounds.
D. Pupillary dilation. - Precise Answer ✔✔D: Pupillary constriction, not dilation, is a hallmark of opiate
overdose. Decreased respiratory rate, lethargy, and decreased bowel sounds are common physical
symptoms of opiate overdose.
A 10-year-old child is to have a venipuncture done at the femoral site. Which of the
following anatomic structures is most medial in the inguinal area?
A. Femoral vein.
B. Femoral artery.
C. Femoral nerve.
, D. Anterior superior iliac crest. - Precise Answer ✔✔A: The femoral vein is the most medial structure in
the inguinal canal, so venipuncture should be attempted medially to where the femoral artery is
palpated at the femoral triangle.
An early-adolescent female is described by her mother as having no interest in participating
in any activities with her parents. What aspect of psychosocial development does this reflect?
A. Identity.
B. Peer pressure.
C. Body Image.
D. Independence. - Precise Answer ✔✔D: Decreased interest in parental activities is consistent with
independence activities in which the adolescent begins to move away from the dependence of
childhood to establish her own identity. This period is often characterized by rebellion and withdrawal
from the family.
A 16-year-old female presents to the clinic asking for oral contraceptive pills. Which of the
following medical problems in the past would contraindicate the use of oral contraceptives?
A. Migraine headaches.
B. Depression.
C. Deep vein thrombosis.
D. Pneumonia. - Precise Answer ✔✔C: A history of thromboembolic disease, such as deep vein
thrombosis, is a contraindication to the use of oral contraceptive pills, as this is a side effect of the drugs.
A 7-year-old male has a history of supraventricular tachycardia. His ECG shows a shortened
PR interval, a delta wave, and a wide QRS pattern. What is the most likely conduction
disturbance?
A. Left bundle branch block (LBBB).
B. Wolff-Parkinson-White syndrome (WPW).
C. Right bundle branch block (RBBB).
D. Mobitz type II second-degree heart block. - Precise Answer ✔✔B: A shortened PR interval, delta
wave, and wide QRS pattern with a history of SVT are suggestive of WPW. Atrial impulses are conducted
via an anomalous pathway to the ventricles leading to a premature and prolonged depolarization of the
ventricles. Ablation of the pathway is often needed.
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