The student nurse learns that the process in which bilirubin is changed from a fat-soluble product to a water-soluble product is known as:
Unconjugation of bilirubin.
Albumin binding.
Enterohepatic circuit.
Conjugation of bilirubin.
The Correct Answer is D
Choice A rationale
Unconjugation of bilirubin is the process where bilirubin, initially produced in a water-insoluble form (unconjugated or indirect bilirubin), is not yet processed by the liver. This form cannot be easily excreted by the body.
Choice B rationale
Albumin binding refers to the transport of unconjugated bilirubin in the bloodstream. Because unconjugated bilirubin is fat-soluble and not easily dissolved in water, it binds to albumin, a protein in the blood, which allows it to be transported to the liver.
Choice C rationale
The enterohepatic circuit describes the circulation of bile acids from the liver to the small intestine, where they aid in fat digestion and absorption, and then back to the liver. Bilirubin is a byproduct of heme breakdown and is processed separately in the liver before excretion in bile.
Choice D rationale
Conjugation of bilirubin is the process that occurs in the liver where the enzyme uridine diphosphoglucuronate glucuronosyltransferase (UGT) attaches glucuronic acid molecules to unconjugated bilirubin. This process transforms the fat-soluble unconjugated bilirubin into a water-soluble form called conjugated (or direct) bilirubin, which can then be excreted in bile into the intestines.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A rationale
Thoroughly cooking meat to an internal temperature of 160°F (71°C) kills the Toxoplasma gondii parasite, thus preventing transmission. This is a recommended measure to prevent toxoplasmosis during pregnancy.
Choice B rationale
Drinking unpasteurized milk poses a risk of exposure to various pathogens, including Toxoplasma gondii, as pasteurization is a process that kills harmful microorganisms. Pregnant women should avoid unpasteurized dairy products to reduce the risk of infection. This statement indicates a need for further instruction as it suggests an unsafe practice.
Choice C rationale
Cat feces can contain oocysts of Toxoplasma gondii. Avoiding contact with materials potentially contaminated with cat feces, such as litter boxes or garden soil, is a crucial measure to prevent toxoplasmosis.
Choice D rationale
Raw meat can be contaminated with Toxoplasma gondii. Avoiding touching mucous membranes of the mouth or eyes while handling raw meat and washing hands thoroughly afterwards prevents the parasite from entering the body. This is a recommended preventive measure.
Correct Answer is ["7"]
Explanation
Step 1: Heart rate of 110/min scores 2 points (normal heart rate >100).
Step 2: Slow weak cry scores 1 point (good strong cry scores 2, no cry scores 0).
Step 3: Some flexion of extremities scores 1 point (active movement scores 2, limp scores 0).
Step 4: Grimace in response to suctioning scores 1 point (coughing or sneezing scores 2, no response scores 0).
Step 5: Body pink, blue extremities scores 1 point (completely pink scores 2, completely blue or pale scores 0).
Step 6: Total Apgar score is the sum of the scores from each category: 2 + 1 + 1 + 1 + 2 = 7. Final calculated answer: 7.
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