The nurse is teaching a client about hypertension and the effects on the left ventricle. What diagnostic test will the nurse describe?
echocardiography
positron emission tomography (PET) scan
fluorescein angiography
computed tomographic (CT) scan
The Correct Answer is A
A. Echocardiography: This test uses ultrasound to visualize heart structures and assess left ventricular function and thickness. It’s the primary tool for evaluating hypertensive effects on the heart.
B. Positron emission tomography (PET) scan: PET scans assess metabolic activity and are used in oncology and some cardiac studies but are not first-line for evaluating left ventricular changes due to hypertension.
C. Fluorescein angiography: This test is used in ophthalmology to assess retinal blood vessels and has no relevance to cardiac or ventricular function.
D. Computed tomographic (CT) scan: CT scans may detect structural abnormalities but are not typically used to assess left ventricular function in hypertension. Echocardiography is more precise and noninvasive for this purpose.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Release of endorphins and enkephalins: Massage stimulates the release of natural opioids such as endorphins and enkephalins. These neurotransmitters bind to opioid receptors in the brain and spinal cord, helping to reduce pain perception and promote a sense of well-being.
B. Interrupts pain perception: While massage may contribute to distraction, the primary mechanism involves biochemical modulation rather than directly interrupting the perception pathway. Pain perception is complex and multifactorial.
C. Keep the pain at a manageable level: This is a general goal of pain management but not a specific physiological mechanism of massage. It describes the outcome rather than the process by which massage works.
D. Floods the brain with alternative stimuli closes the spinal gate: This describes the gate control theory of pain, which applies more directly to techniques like transcutaneous electrical nerve stimulation (TENS) than to massage. Massage can influence gate control but primarily works through neurochemical pathways.
Correct Answer is C
Explanation
A. Multivitamins: Most multivitamins do not interact significantly with MAOIs unless they contain high levels of tyramine, which is rare. They are generally safe but should still be reviewed by the healthcare provider.
B. Laxatives: Laxatives are not known to have direct interactions with MAOIs. However, excessive use could alter electrolyte balance, which might complicate overall medication management but not specifically with MAOIs.
C. Cold and allergy medications: Many over-the-counter cold and allergy drugs contain sympathomimetic agents like pseudoephedrine, which can cause hypertensive crises. This is because these decongestatnts increase norepinephrine levels while MAOIs prevent the breakdown of norepinephrine. This combination is dangerous and must be strictly avoided.
D. Antiulcer medications: Most antiulcer drugs, such as proton pump inhibitors and H2 blockers, do not significantly interact with MAOIs. They should still be reviewed, but they are not commonly contraindicated.
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