A patient presents with anxiety, increased heart rate, and fear. The nurse suspects the activation of which neurotransmitter?

Histamine

Acetylcholine

GABA

Norepinephrine

Answer and Explanation

The Correct Answer is D

Choice A reason: Histamine regulates wakefulness and allergic responses, not anxiety or fear. Its receptors in the brain promote alertness, but excessive histamine does not drive sympathetic activation like increased heart rate. This makes histamine an incorrect choice for the symptoms described, which align with autonomic arousal.

Choice B reason: Acetylcholine mediates parasympathetic responses, like slowing heart rate, not the sympathetic activation seen in anxiety. While it plays a role in attention, it does not primarily cause fear or tachycardia, making it an unsuitable choice compared to norepinephrine’s role in stress responses.

Choice C reason: GABA inhibits neural activity, reducing anxiety via GABA-A receptor activation. Low GABA levels may contribute to anxiety, but the symptoms described (tachycardia, fear) result from sympathetic activation, not GABA excess. This makes GABA incorrect for the neurotransmitter driving these symptoms.

Choice D reason: Norepinephrine, released during stress, activates the sympathetic nervous system, increasing heart rate and inducing fear via locus coeruleus activation. It heightens arousal in the amygdala, contributing to anxiety symptoms. This aligns with the fight-or-flight response, making norepinephrine the correct neurotransmitter for these symptoms.

Nursing Test Bank

Quiz #1: RN Exams Pharmacology Exams Quiz #2: RN Exams Medical-Surgical Exams Quiz #3: RN Exams Fundamentals Exams Quiz #4: RN Exams Maternal-Newborn Exams Quiz #5: RN Exams Anatomy and Physiology Exams Quiz #6: RN Exams Obstetrics and Pediatrics Exams Quiz #7: RN Exams Fluid and Electrolytes Exams Quiz #8: RN Exams Community Health Exams Quiz #9: RN Exams Promoting Health across the lifespan Exams Quiz #10: RN Exams Multidimensional care Exams

Get 100+ Naxlex Exit Exams for $79 Try Naxlex NCLEX-RN (14 Day Free-Trial)

Naxlex Comprehensive Predictor Exams

Quiz #1: Naxlex RN Comprehensive online practice 2019 B with NGN Quiz #2: Naxlex RN Comprehensive Predictor 2023 Quiz #3: Naxlex RN Comprehensive Predictor 2023 Exit Exam A Quiz #4: Naxlex HESI Exit LPN Exam Quiz #5: Naxlex PN Comprehensive Predictor PN 2020 Quiz #6: Naxlex VATI PN Comprehensive Predictor 2020 Quiz #8: Naxlex PN Comprehensive Predictor 2023 - Exam 1 Quiz #10: Naxlex HESI PN Exit exam Quiz #11: Naxlex HESI PN EXIT Exam 2

Free Nursing Study Resources

Correct Answer is C

Explanation

Choice A reason: Hydroxyzine, an antihistamine, reduces anxiety via sedation but is not specific for performance anxiety. It blocks histamine receptors, not sympathetic responses like tachycardia in stage fright. Propranolol better targets physical symptoms, making hydroxyzine less effective for this specific anxiety type.

Choice B reason: Imipramine, a tricyclic, treats generalized anxiety or depression via serotonin-norepinephrine reuptake inhibition but is not ideal for performance anxiety. Its slow onset and side effects make it unsuitable for acute, situational sympathetic activation, unlike propranolol’s rapid effect on physical symptoms.

Choice C reason: Propranolol, a beta-blocker, reduces sympathetic symptoms like tachycardia and trembling in performance anxiety by blocking norepinephrine at beta receptors. This calms physical manifestations of amygdala-driven fear, making it the preferred choice for situational anxiety, aligning with evidence-based treatment for performance anxiety.

Choice D reason: Buspirone enhances serotonin for chronic anxiety but takes weeks to act, unsuitable for acute performance anxiety. Sympathetic activation in stage fright requires rapid beta-blockade, not gradual serotonin modulation, making buspirone incorrect for the immediate needs of this condition.

A. Involuntary, excessive continuation or repetition of a single response or idea B. Has a lack of a logical relationship between thoughts, making the speech vague, diffuse, and unfocused C. Overproductive speech which rapidly moves from topic to topic with a tenuous logical link between topics D. Provides a lot of unnecessary detail, never returns to the central point, and never answers the question

Correct Answer is D

Explanation

Choice A reason: Involuntary repetition, or perseveration, involves repeating a single idea, often due to frontal lobe dysfunction in disorders like schizophrenia. Unlike tangential thinking, it fixates on one thought without divergence, making it distinct and incorrect for describing the diffuse, off-point speech of tangentially.

Choice B reason: Lacking logical relationships describes loose associations, not tangential thinking. Loose associations, seen in schizophrenia, reflect disorganized thoughts due to dopamine dysregulation, jumping illogically between ideas. Tangentiality diverges with excessive detail, staying somewhat related but off-point, making this option incorrect.

Choice C reason: Overproductive speech with tenuous links describes flight of ideas, common in mania with elevated dopamine. Unlike tangentiality, it involves rapid topic shifts with loose connections, not excessive detail missing the point. This distinction makes it an incorrect choice for tangential thinking.

Choice D reason: Tangential thinking involves excessive, irrelevant details, failing to return to the original question, often seen in schizophrenia or mania. This reflects disrupted executive function in the prefrontal cortex, impairing focus. The description matches this pattern, making it the correct choice for tangential speech.

View Question and Answer

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

A patient presents with anxiety, increased heart rate, and fear. The nurse suspects the activation of which neurotransmitter?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A patient reports experiencing performance anxiety in front of an audience. The nurse should be aware that this type of anxiety is often treated with which medication?

Correct Answer is C

Explanation

Which of the following speech patterns is an example of tangential thinking?

Correct Answer is D

Explanation

A client experiences panic attacks when confronted with riding in elevators. The nurse is teaching the client to use relaxation techniques while gradually exposing the client to getting on an elevator. Which technique is the nurse using?

After a client has been prescribed fluoxetine (Prozac) for a diagnosis of anxiety disorder, which of the following information should the nurse be sure to include in the client teaching?

A client is newly prescribed a medication that will block the effects of histamine for the treatment of a mental health disorder. The client asks, “What side effects should I anticipate with this new medication?” Which response by the nurse is accurate?

A patient is taking a first-generation antipsychotic medication. What should the nurse teach about the drug’s strong dopaminergic effect?

Which principle should guide the nurse in determining when to use silence during a patient interview?

A client is prescribed a serotonin-norepinephrine reuptake inhibitor. The nurse would identify that which of the following will be prescribed?

A patient is undergoing diagnostic tests. The patient says, “Nothing is wrong with me except a stubborn chest cold.” The spouse reports that the patient smokes, coughs daily, has recently lost 15 pounds, and is easily fatigued. Which defense mechanism is the patient using?

Which neurotransmitter has both muscarinic and nicotinic receptor subtypes?