What assessment finding would indicate the patient's left-sided heart failure is worsening?
Increased jugular venous pressure.
Liver enlargement.
Increased pulse rate.
Increased crackles in lung fields.
The Correct Answer is D
Choice A rationale
Increased jugular venous pressure is more commonly associated with right-sided heart failure, where blood backs up into the venous system.
Choice B rationale
Liver enlargement is also indicative of right-sided heart failure due to congestion of the liver blood vessels.
Choice C rationale
Increased pulse rate can occur in both left and right-sided heart failure but is not a specific indicator of worsening left-sided failure.
Choice D rationale
Increased crackles in lung fields indicate fluid accumulation in the lungs, a sign of worsening left-sided heart failure. Left-sided heart failure leads to pulmonary congestion due to inadequate pumping of blood from the left ventricle.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A rationale
This choice is incorrect. Cholinergic agonists primarily affect acetylcholine receptors, not GABA receptors. GABA receptors are involved in the inhibitory neurotransmission in the central nervous system and are the target of different drug classes, such as benzodiazepines and barbiturates, which are not related to cholinergic agonists.
Choice B rationale
This choice is incorrect. Cholinergic agonists do not decrease norepinephrine activity. Norepinephrine is a neurotransmitter involved in the sympathetic nervous system response, which is different from the cholinergic system. Drugs that decrease norepinephrine activity would have a different mechanism of action, such as adrenergic antagonists.
Choice C rationale
This choice is incorrect. The primary action of cholinergic agonists is not to increase dopamine activity. Dopamine is another neurotransmitter involved in various brain functions, including reward and motor control. Cholinergic agonists specifically target acetylcholine receptors, enhancing their activity, which is not related to dopamine receptors.
Choice D rationale
This choice is correct. Cholinergic agonists increase the activity of acetylcholine receptor sites throughout the body. These drugs mimic the action of acetylcholine, a neurotransmitter that plays a key role in the parasympathetic nervous system, which regulates functions such as muscle contraction, gland secretion, and heart rate. Enhancing acetylcholine activity helps in conditions like myasthenia gravis and certain types of glaucoma.
Correct Answer is B
Explanation
Choice A rationale
While tinnitus can occur with certain medications, it is not a common adverse effect of lidocaine.
Choice B rationale
Dizziness is a common adverse effect of lidocaine and can indicate an issue with its administration.
Choice C rationale
Dysphagia is not a typical adverse effect of lidocaine administration.
Choice D rationale
Excessive bruising is not associated with lidocaine but rather with anticoagulants or trauma.
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