All are causes of intellectual disability except
Fetal alcohol syndrome
Down syndrome
Serotonin syndrome
Fragile X syndrome
The Correct Answer is C
A. Fetal alcohol syndrome (FAS) is a leading preventable cause of intellectual disability. Prenatal alcohol exposure disrupts brain development, leading to cognitive impairment, behavioral problems, and facial abnormalities.
B. Down syndrome (trisomy 21) is a genetic disorder that causes intellectual disability, developmental delays, and characteristic physical features. It results from an extra copy of chromosome 21, affecting brain development and cognitive function.
C. Serotonin syndrome is an acute, life-threatening condition caused by excessive serotonin activity due to medication overdose or drug interactions (e.g., SSRIs, MAOIs, MDMA). Symptoms include hyperreflexia, autonomic instability, and altered mental status, but it does not cause intellectual disability.
D. Fragile X syndrome is a genetic disorder caused by a mutation in the FMR1 gene on the X chromosome. It is the most common inherited cause of intellectual disability, leading to cognitive impairments, social anxiety, and hyperactivity, often resembling autism spectrum disorder (ASD).
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. Clozapine (Clozaril) is a second-generation (atypical) antipsychotic with a high risk of weight gain, metabolic syndrome, and sedation due to its strong antagonism of histamine (H1) and serotonin (5-HT2C) receptors. It can also cause sexual dysfunction due to its impact on dopamine and prolactin levels.
B. Olanzapine (Zyprexa) has a significant risk of weight gain and metabolic side effects, similar to clozapine. It is known to cause hyperlipidemia, insulin resistance, and increased appetite, contributing to obesity. Sexual dysfunction can occur but is less common than with prolactin-elevating antipsychotics.
C. Haloperidol (Haldol) is a first-generation (typical) antipsychotic with a high risk of sexual dysfunction due to prolactin elevation from strong dopamine (D2) receptor blockade. While it has a lower risk of weight gain than atypical antipsychotics, it carries a high risk of extrapyramidal symptoms (EPS).
D. Aripiprazole (Abilify) is a partial dopamine agonist and has the lowest risk of weight gain among atypical antipsychotics. It also has a minimal impact on prolactin levels, reducing the risk of sexual dysfunction. Due to its unique mechanism, it is often preferred for patients concerned about metabolic side effects and sexual health.
Correct Answer is B
Explanation
A. Restlessness and unable to sit still. This describes akathisia, a movement disorder characterized by an intense feeling of restlessness, often seen as a side effect of antipsychotic medications.
B. Muscle spasms on the face, eyes, neck, and tongue. Dystonia is characterized by sudden, involuntary muscle contractions, often affecting the face, neck (torticollis), eyes (oculogyric crisis), tongue, and jaw. It is a common extrapyramidal side effect (EPS) of antipsychotic medications, particularly first-generation antipsychotics.
C. Tongue rolling and lip smacking. These are hallmark symptoms of tardive dyskinesia, a late-onset movement disorder caused by long-term use of dopamine-blocking agents. It involves involuntary, repetitive movements of the mouth, face, and limbs.
D. Tremors at rest, bradykinesia, and shuffling gait. These symptoms are characteristic of Parkinsonism, an extrapyramidal side effect of dopamine-blocking medications. It mimics Parkinson’s disease and includes rigidity, tremors, and slow movements.
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.