Which of the following would NOT be a cause of prerenal failure?
Hemorrhage (bleeding out)
Cirrhosis
Kidney disease
Narrowing of the blood vessels leading to the kidneys
The Correct Answer is C
A. Hemorrhage: Hemorrhage leads to significant blood loss, resulting in decreased blood volume and reduced renal perfusion, which is a common cause of prerenal acute kidney injury (AKI).
B. Cirrhosis: Cirrhosis can cause systemic vasodilation and reduced effective circulating volume, leading to decreased renal blood flow and prerenal failure due to impaired kidney perfusion.
C. Kidney disease: Kidney disease itself is an intrinsic (renal) cause of kidney failure, involving direct damage to the kidney tissue, rather than prerenal failure caused by decreased perfusion.
D. Narrowing of the blood vessels leading to the kidneys: Renal artery stenosis reduces blood flow to the kidneys, causing prerenal failure by impairing kidney perfusion despite adequate circulating volume.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. This option incorrectly matches the terms: cholelithiasis refers to gallstones, not stones in the common bile duct; cholecystitis is inflammation of the gallbladder, not the common bile duct; choledocholithiasis refers to stones in the common bile duct, not inflammation.
B. This option reverses definitions: cholangitis is inflammation of the common bile duct, not gallstones; cholecystitis is inflammation of the gallbladder, not stones in the common bile duct; choledocholithiasis refers to stones in the common bile duct, not inflammation.
C. This option mislabels choledocholithiasis as inflammation of the common bile duct, but it actually refers to stones in the common bile duct; cholecystitis is inflammation of the gallbladder, not stones in the common bile duct; cholangitis is inflammation of the common bile duct, not the gallbladder.
D. This option correctly matches the terms: cholelithiasis means gallstones; choledocholithiasis refers to stones in the common bile duct; cholangitis is inflammation of the common bile duct; cholecystitis is inflammation of the gallbladder.
Correct Answer is B
Explanation
A. Primary disorders affect hormone receptors, while secondary disorders affect hormone production: While receptor sensitivity may play a role in some conditions, the main distinction between primary and secondary endocrine disorders is based on the location of dysfunction, not receptor or hormone function alone.
B. Primary disorders originate in the target organ, while secondary disorders originate in the pituitary gland or hypothalamus: In primary disorders, the problem lies in the endocrine gland itself (e.g., the thyroid gland in primary hypothyroidism), while secondary disorders result from dysfunction in regulatory centers like the pituitary or hypothalamus.
C. Primary disorders involve the hypothalamus, while secondary disorders involve the target organ: This reverses the correct relationship. Secondary disorders typically involve the hypothalamus or pituitary, not primary disorders.
D. Primary disorders are caused by external factors, while secondary disorders are caused by genetic mutations: While both external and genetic factors can contribute to endocrine disorders, this distinction does not define the difference between primary and secondary types. The classification is based on the anatomical source of dysfunction.
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