What pattern of inheritance applies to Cystic Fibrosis?
Mitochondrial
X-linked dominant
Autosomal recessive
Autosomal dominant
The Correct Answer is C
(A) Mitochondrial: CF is not maternally inherited through mitochondrial DNA.
(B) X-linked Dominant: CF does not involve the X chromosome.
(C) Autosomal Recessive: Cystic fibrosis (CF) occurs when an individual inherits two mutated copies of the CFTR gene (one from each parent). Both parents must be carriers for a child to develop the disease.
(D) Autosomal Dominant: CF requires two copies of the mutated gene, unlike dominant disorders that require only one.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
(A) Potassium level of 4.0 mEq/L: Normal range (3.5-5.0 mEq/L), does not indicate CKD.
(B) Blood urea nitrogen (BUN) of 18 mg/dL: BUN can fluctuate with hydration status and is not the most specific CKD marker.
(C) Serum creatinine of 5.0 mg/dL: Creatinine is a direct marker of kidney function. A level above 1.2 mg/dL suggests dysfunction, and 5.0 mg/dL is severely elevated, indicating CKD.
(D) Urine specific gravity of 1.015: Falls within the normal range (1.010-1.030), does not indicate CKD.
Correct Answer is {"A":{"answers":"A"},"B":{"answers":"A"},"C":{"answers":"B"},"D":{"answers":"A"},"E":{"answers":"B"},"F":{"answers":"C"},"G":{"answers":"C"}}
Explanation
|
Prerenal |
Intrarenal |
Postrenal |
|
Severe Dehydration Sepsis CHF (Congestive Heart Failure) |
Acute Tubular Necrosis (ATN) Gentamicin (Aminoglycoside antibiotic toxicity) |
Benign Prostatic Hyperplasia (BPH) Renal Calculi (Kidney Stones) |
Severe Dehydration: Prerenal
Decreased blood flow to the kidneys due to low volume.
Sepsis: Prerenal
Hypotension from systemic infection reduces kidney perfusion.
CHF (Congestive Heart Failure): Prerenal
Reduced cardiac output leads to inadequate renal perfusion.
Benign Prostatic Hyperplasia (BPH): Postrenal
Urinary outflow obstruction causes back pressure on the kidneys
Renal Calculi (Kidney Stones): Postrenal
Blockage in the urinary tract prevents urine excretion, leading to kidney damage.
Acute Tubular Necrosis (ATN): Intrarenal
Direct injury to kidney tubules due to ischemia or toxins.
Gentamicin (Aminoglycoside antibiotic toxicity): Intrarenal
Causes nephrotoxicity, damaging renal tubules directly.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.