A nurse is caring for a patient receiving medication to stimulate platelet production.
Which of the following are potential complications related to this therapy? Select all that apply.

Choice A rationale

This statement is incorrect because hot, dry skin is a hallmark characteristic of heat stroke rather than heat exhaustion. In heat stroke, the body's thermoregulatory mechanisms fail entirely, and the person stops sweating, leading to a dangerous rise in core body temperature, often exceeding 104 degrees Fahrenheit or 40 degrees Celsius. In contrast, patients experiencing heat exhaustion are typically still able to sweat profusely as their body attempts to dissipate heat through the process of evaporation.

Choice B rationale

Heat exhaustion often involves hypotension and tachycardia as the body attempts to compensate for significant fluid and electrolyte loss. Excessive sweating leads to a decrease in intravascular volume, which lowers blood pressure. The heart rate increases as a compensatory mechanism to maintain cardiac output and perfusion to vital organs. These clinical findings are essential for differentiating exhaustion from simpler heat cramps. Understanding these hemodynamics helps the nurse prioritize fluid resuscitation to prevent the progression to life-threatening heat stroke.

Choice C rationale

Altered mental status, confusion, seizures, or coma are definitive characteristics of heat stroke that distinguish it from heat exhaustion. As the core body temperature rises to critical levels, the central nervous system becomes impaired due to thermal injury and cerebral edema. While a person with heat exhaustion may feel weak or dizzy, they generally remain cognitively intact. The presence of neurological dysfunction signifies a medical emergency requiring immediate and aggressive cooling measures to prevent permanent brain damage or multi-organ failure.

Choice D rationale

Excessive sweating and clammy, pale skin are classic signs of heat exhaustion. During this stage, the thermoregulatory system is still functioning but is overwhelmed by the heat load and fluid depletion. The skin feels cool and moist because the body is still pushing blood to the periphery to encourage cooling through sweat. Normal lab parameters for sodium are 135 to 145 mEq/L, and these levels can fluctuate significantly during heat-related illnesses, requiring careful monitoring and replacement during treatment. .

Choice A rationale

Systemic Lupus Erythematosus is an autoimmune disorder characterized by the production of antinuclear antibodies that attack healthy connective tissue. The hallmark butterfly rash, or malar rash, across the cheeks and nose is a classic diagnostic sign of this condition. Chronic inflammation leads to systemic symptoms including intermittent fevers, significant fatigue, and joint swelling. Neurological involvement often manifests as cognitive dysfunction or difficulty concentrating, frequently referred to as lupus fog by many patients.

Choice B rationale

Psoriatic arthritis is a chronic inflammatory condition that typically affects individuals with the skin condition psoriasis. While it involves joint pain and swelling, the characteristic rash consists of silvery scales on red, thickened skin patches, usually found on elbows or knees. It does not typically present with a malar butterfly rash or the significant systemic photosensitivity seen in lupus. The inflammation in this condition specifically targets the joints and the areas where tendons and ligaments attach to bone.

Choice C rationale

Rheumatoid arthritis is a systemic autoimmune disease primarily attacking the synovial membrane of the joints, leading to symmetrical swelling and pain. Although it causes fatigue and fever, it lacks the specific malar butterfly rash triggered by sun exposure. The joint involvement in rheumatoid arthritis usually begins in smaller joints like the hands and feet before progressing to larger joints like the knee. It does not typically cause the specific dermatological manifestations or the cognitive impairment noted in this client.

Choice D rationale

Scleroderma, or systemic sclerosis, involves the overproduction of collagen leading to the hardening and tightening of the skin and connective tissues. While it can cause joint pain and fatigue, the skin changes are usually characterized by thickening, particularly in the fingers and face, rather than a red butterfly rash. Scleroderma often presents with Raynaud's phenomenon and esophageal dysfunction. The pathophysiology focuses on vascular damage and excessive fibrosis rather than the specific inflammatory malar pattern observed in systemic lupus.