Which imaging technique uses endoscopy combined with radiographic images to examine the bile and pancreatic ducts?

Percutaneous Transhepatic Cholangiography (PTC)

Endoscopic Ultrasound (EUS)

Magnetic Resonance Cholangiopancreatography (MRCP)

Endoscopic Retrograde Cholangiopancreatography (ERCP)

Answer and Explanation

The Correct Answer is D

Rationale:
A. Percutaneous Transhepatic Cholangiography (PTC) involves inserting a needle through the skin into the liver to visualize bile ducts, not using endoscopy.
B. Endoscopic Ultrasound (EUS) uses an endoscope with ultrasound to image structures near the GI tract but does not combine with radiographic imaging of the ducts.
C. Magnetic Resonance Cholangiopancreatography (MRCP) uses MRI to noninvasively visualize bile and pancreatic ducts, without endoscopy.
D. Endoscopic Retrograde Cholangiopancreatography (ERCP) combines endoscopy with radiographic imaging to examine the bile and pancreatic ducts, allowing both diagnosis and therapeutic interventions.

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Correct Answer is C

Explanation

Rationale:
A. Extreme thirst is associated with hypernatremia, not hypokalemia.
B. Hypokalemia typically causes hyporeflexia, not hyperactive reflexes.
C. Weak, irregular pulse is expected with hypokalemia because low potassium affects cardiac conduction and muscle contractility, increasing the risk of dysrhythmias.
D. Hypokalemia usually causes hypoactive bowel sounds due to decreased smooth muscle activity.

A. "The hypertonic solution will be more rapidly diluted when given through a central line." B. "The required blood glucose monitoring is based on samples obtained from a central line." C. "The prescribed infusion can be given more rapidly when the patient has a central line." D. "There is a decreased risk for infection when 25% dextrose is infused through a central line."

Correct Answer is A

Explanation

Rationale:
A. Hypertonic solutions, like TPN with 25% dextrose, can irritate peripheral veins and cause phlebitis. Administering them through a central line allows rapid dilution in a large volume of blood, reducing vein irritation and promoting safe infusion.
B. Blood glucose monitoring is not dependent on the line type; it is done via peripheral blood samples.
C. The infusion rate is determined by the prescribed therapy, not by whether a central line is used.
D. Central lines do not decrease the risk of infection; in fact, they carry a higher risk of central line–associated bloodstream infections compared with peripheral lines.

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Which imaging technique uses endoscopy combined with radiographic images to examine the bile and pancreatic ducts?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A nurse is assessing a client who has hypokalemia as a result of nausea, vomiting, and diarrhea. Which of the following findings should the nurse expect?

Correct Answer is C

Explanation

A student asks the nurse why a peripherally inserted central catheter is needed for a patient receiving parenteral nutrition with 25% dextrose. Which response by the nurse is accurate?

Correct Answer is A

Explanation

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