CCRN : Critical Care Register Nurse Exam

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Critical Care Register Nurse
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Answer: D
Section 20: Sec Twenty (351 to 355) Details:Critical Care Nursing Neonatal Exam
QUESTION: 351
If a newborn's stroke volume is about 5 mL, what is the average pulse required to ensure adequate cardiac output?
1. 100 bpm.
2. 145 bpm.
3. 180 bpm.
4. 195 bpm.
Answer: B
QUESTION: 352
A neonate has a differential diagnosis of congenital muscular dystrophy (CMD) (laminin alpha-2 deficiency) and exhibits hypotonia at birth with poor feeding and mild respiratory distress. Which tests are necessary to establish the diagnosis?
1. Creatinine kinase.
2. Electromyogram, nerve conduction studies, and muscle biopsy.
3. Muscle biopsy only.
4. MRI only.
Answer: B
QUESTION: 353
The nurse is inserting a PICC for an infant who requires extended IV therapy because of very low birth weight. During the procedure, the infant must be monitored for which of the following?
1. Tachycardia and tachypnea.
2. Bradycardia and hypoxia.
3. Atrial fibrillation.
4. Blood pressure.
Answer: B
QUESTION: 354
A mixed venous oxygen saturation (SvO2) level of less than 60% can indicate which of the following?
1. Increased hemoglobin, PaO2, and/or cardiac output.
2. Decreased hemoglobin, PaO2, and/or cardiac output.
3. Decreased oxygen consumption.
4. Sepsis.
Answer: B
QUESTION: 355
A 21-day-old neonate develops green-bronze jaundice, dark urine, claycolored stools, abdominal distention with distended abdominal veins, and hepatosplenomegaly with firm liver. Liver biopsy and test shows extrahepatic biliary atresia, and a hepatoportoenterostomy (Kasai procedure) is done to create a conduit between the liver and small intestine. Which added vitamin(s) or minerals should the baby receive postoperatively?
1. Water-soluble vitamins (B-complex, C).
2. Fat-soluble vitamins (A, D, E, K).
3. Calcium.
4. Potassium.
Answer: B
Section 21: Sec Twenty One (356 to 360) Details:Progressive Care Certified Nurse (PCCN) Practice
QUESTION: 356
Thoracic electrical bioimpedence monitoring with 4 sets of bioimpedence electrodes and 3 ECG electrodes is used to evaluate hemodynamic status of a postsurgical cardiac patient. Where are the bioimpedence electrodes placed?
1. One set on the arms, one set on the legs, and one set on the sides of the chest.
2. Two sets bilaterally at the base of the neck and two sets on each side of the chest.
3. One set on the legs and three sets on each side of the chest.
4. One set on the arms, one set bilaterally at the base of the neck, and two sets on each side of the chest.
Answer: B
QUESTION: 357
A 52-year-old female with a history of bipolar disease is one-day post-operative following a hip replacement. The patient slept only one or two hours during the night and is speaking rapidly, throwing her belongings at the nurses, and insisting she is going to leave the hospital against medical advice. The nurse should notify:
1. The mental health crisis team
2. Social services
3. A home health agency
4. The patient's husband
Answer: A
QUESTION: 358
If all patients who develop urinary infections are evaluated per urine culture and sensitivities for microbial resistance, but only those with clinically-evident infections are included, then those with subclinical infections may be missed, skewing results. This is an example of:
1. Information bias
2. Selection bias
3. Hypothesis testing
4. Generalizability
Answer: B
QUESTION: 359
A 28-year-old male with extensive second and third-degree burns develops abdominal discomfort and vomits coffee ground emesis and frank blood. The most likely cause is:
1. A peptic ulcer
2. The erosion of the esophagus from burns
3. Paralytic ileus
4. Stress-related erosive syndrome
Answer: D
QUESTION: 360
Beck's triad (increased central venous pressure with distended neck veins, muffled heart sounds, and hypotension) is indicative of which condition?
1. Myocardial infarction
2. Aortic valve prolapse
3. Cardiac tamponade
4. Pulmonary embolism
Answer: C

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