A client reports a dull, poorly localized abdominal discomfort that is difficult to pinpoint.
How should the nurse classify this type of pain?
Visceral pain.
Neuropathic pain.
Referred pain.
Somatic pain.
The Correct Answer is A
Choice A rationale
Visceral pain originates from the internal organs within the thorax, abdomen, or pelvis. The nerves supplying these organs are fewer and less specialized than those in the skin. Consequently, visceral pain is often described as dull, aching, or squeezing and is poorly localized, making it difficult for the patient to point to a specific spot. It is frequently associated with autonomic responses such as nausea or changes in heart rate and blood pressure due to organ distension.
Choice B rationale
Neuropathic pain results from direct damage to or dysfunction of the nervous system itself rather than tissue injury. It is typically described by patients as burning, tingling, shooting, or electric-like sensations. Unlike the dull discomfort of visceral pain, neuropathic pain often follows a specific nerve distribution and can be associated with hypersensitivity to touch. It is common in conditions like diabetic neuropathy, shingles, or nerve compression syndromes where the signaling process is pathologically altered.
Choice C rationale
Referred pain is pain perceived at a location other than the site of the actual painful stimulus. This happens because various visceral organs and skin areas share common sensory pathways in the spinal cord. A classic example is shoulder pain during a myocardial infarction or gallbladder disease. While referred pain can be poorly localized, the question specifically asks about the classification of the nature of the abdominal discomfort itself rather than its secondary location in a distant area.
Choice D rationale
Somatic pain arises from the skin, muscles, joints, or bones. It is generally well-localized because these tissues are densely populated with sensory receptors. Patients can usually point exactly to the source of the pain, which is often described as sharp, throbbing, or stabbing. Because the abdominal discomfort mentioned in the scenario is dull and difficult to pinpoint, it does not fit the characteristic description of somatic pain, which is much more precise and intense.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A rationale
Dehydration increases blood osmolarity, which is sensed by osmoreceptors in the hypothalamus. This triggers the posterior pituitary to release antidiuretic hormone. ADH acts on the collecting ducts of the kidneys to increase water permeability through aquaporin channels. This leads to water reabsorption into the bloodstream to restore volume. Normal serum osmolarity is 275 to 295 mOsm/kg. By increasing water retention, the body attempts to lower osmolarity and maintain blood pressure during fluid deficits.
Choice B rationale
Decreased secretion of antidiuretic hormone would occur in states of fluid volume excess, not dehydration. Lower ADH levels lead to the excretion of large amounts of dilute urine, which would exacerbate a dehydrated state. In dehydration, the body works to conserve every possible drop of water to maintain cellular function and cardiac output. Inhibiting ADH would be a maladaptive response that would quickly lead to hypovolemic shock and severe electrolyte imbalances in the patient.
Choice C rationale
Aldosterone is a mineralocorticoid released by the adrenal cortex in response to angiotensin II. Its primary role is to increase sodium reabsorption and potassium excretion in the distal tubules. Increased sodium reabsorption usually leads to water retention via osmosis. This choice is incorrect because it suggests aldosterone causes sodium excretion; in reality, aldosterone promotes sodium conservation. Sodium excretion is actually promoted by natriuretic peptides when the body has too much fluid, which is opposite to dehydration.
Choice D rationale
Atrial natriuretic peptide is released by the heart atria in response to high blood volume and atrial stretching. ANP promotes the excretion of sodium and water to reduce blood pressure and volume. In a dehydrated client, blood volume is low and the atria are not stretched, so ANP levels should be low. Increasing ANP during dehydration would be counterproductive as it would trigger further fluid loss through the kidneys, worsening the patient's already compromised fluid status.
Correct Answer is C
Explanation
Choice C rationale
Normal negative feedback loops involve the end-product (cortisol) inhibiting the production of the stimulating hormone (ACTH). In a functioning system, high cortisol levels would signal the pituitary to stop producing ACTH. However, a pituitary adenoma is an autonomous tumor that does not respond to these inhibitory signals. Therefore, the persistence of high ACTH levels despite the presence of high circulating cortisol (normal: 5 to 23 mcg/dL) clearly demonstrates that the negative feedback mechanism is disrupted and no longer regulating hormone secretion.
Choice A rationale
Fluctuating cortisol levels with normal ACTH levels suggest that the pituitary-adrenal axis is still somewhat responsive to physiological rhythms or that the primary issue may not be at the pituitary level. In the case of an ACTH-secreting adenoma, one would expect both values to be consistently abnormal or poorly regulated. Normal ACTH ranges (typically 10 to 60 pg/mL) in the presence of fluctuating cortisol do not provide the definitive evidence of feedback loop failure that a non-suppressible ACTH value provides.
Choice B rationale
This finding would actually demonstrate that the negative feedback loop is still intact. If elevated cortisol levels were successful in suppressing ACTH secretion, it would indicate that the pituitary gland is still capable of sensing and responding to the concentrations of adrenal hormones in the blood. In Cushing disease caused by a pituitary adenoma, the hallmark is that the tumor continues to secrete ACTH even when cortisol levels are excessively high, proving the loss of normal regulatory control.
Choice D rationale
Decreased cortisol levels despite elevated ACTH would typically indicate primary adrenal insufficiency, such as Addison disease, rather than a pituitary adenoma. In this scenario, the pituitary is functioning correctly by increasing ACTH to stimulate the failing adrenal glands, but the adrenals are unable to produce cortisol. This represents a functioning feedback loop attempting to maintain homeostasis, rather than the disruption of feedback seen when a pituitary tumor ignores high hormone levels and continues to overproduce ACTH. .
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