A client presents to the emergency department with complaints of vomiting bright red blood. Which of the following terms best describes this clinical finding?
Steatorrhea.
Hematemesis.
Gastroenteritis.
Melena.
The Correct Answer is B
Choice A rationale
This term describes the presence of excess fat in the feces, which often results in stools that are bulky, foul-smelling, and oily. This condition is typically caused by malabsorption syndromes, such as celiac disease or cystic fibrosis, where the body cannot properly digest or absorb dietary fats. It has no physiological connection to the vomiting of blood and involves the lower digestive outcomes rather than an acute upper gastrointestinal emergency or vascular rupture.
Choice B rationale
This is the correct medical term for the vomiting of blood, which can appear as bright red or like coffee grounds depending on how long it has been in contact with gastric acid. Bright red blood indicates an active, brisk bleed in the upper gastrointestinal tract, such as from esophageal varices or a gastric ulcer. It is a critical clinical finding that requires immediate assessment of hemodynamic stability, as the patient is losing active blood volume.
Choice C rationale
This is a general term for inflammation of the stomach and intestines, commonly caused by viral or bacterial infections. While it can cause significant vomiting and diarrhea, the emesis is usually composed of food or bile rather than bright red blood. While severe irritation can occasionally lead to streaks of blood, the term itself refers to the inflammatory state of the gut lining and does not specifically define the clinical act of vomiting blood.
Choice D rationale
This term refers to the passage of black, tarry stools that result from the digestion of blood in the gastrointestinal tract. While it indicates a bleed, it describes the appearance of blood that has passed through the intestines and been oxidized by acid and bacteria. It is the result of upper gastrointestinal bleeding but is a finding associated with defecation, not the act of vomiting, making it the incorrect term for this specific patient complaint.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A rationale
Multiple sclerosis is a chronic autoimmune disease that specifically targets the central nervous system, which includes the brain and spinal cord. It does not primarily affect the peripheral nervous system, which consists of the nerves outside these structures. Peripheral nerve issues are more characteristic of conditions like Guillain-Barre syndrome or peripheral neuropathy. Understanding that MS is a central nervous system disorder is vital for recognizing the types of neurological deficits and imaging findings expected during diagnosis.
Choice B rationale
There is no single definitive blood test that can confirm a diagnosis of multiple sclerosis. Diagnosis is usually based on clinical findings, magnetic resonance imaging showing lesions disseminated in time and space, and sometimes cerebrospinal fluid analysis for oligoclonal bands. Blood tests are primarily used to rule out other conditions that mimic MS, such as systemic lupus erythematosus or vitamin B12 deficiency. Relying solely on a blood test suggests a misunderstanding of the diagnostic process.
Choice C rationale
Multiple sclerosis is characterized by an immune-mediated attack on the myelin sheath, which is the protective insulation surrounding nerve fibers in the central nervous system. This process of demyelination disrupts the normal transmission of electrical impulses, leading to various neurological symptoms. By correctly identifying that the disease involves the loss of myelin within the central nervous system, the client demonstrates an accurate understanding of the underlying pathophysiology and the reason for their varied physical and cognitive symptoms.
Choice D rationale
The clinical course of multiple sclerosis is typically characterized by unpredictable relapses and remissions or a steady progression of symptoms. It is very rare for symptoms to remain exactly the same every day; instead, patients often experience fluctuations in fatigue, motor strength, and sensory perception depending on disease activity and external factors like heat or stress. Believing that symptoms will be identical daily shows a lack of awareness regarding the episodic and variable nature of MS.
Correct Answer is A
Explanation
Choice A rationale
Hepatitis B is a DNA virus that is highly contagious through parenteral routes. It is found in the highest concentrations in blood, with lower concentrations in semen and vaginal secretions. Transmission occurs when these fluids enter the body of a non-immune person through breaks in the skin or mucous membranes. This can happen through sexual intercourse, sharing needles, or from an infected mother to her infant during childbirth. It is not spread through air.
Choice B rationale
Respiratory droplets are the primary mode of transmission for viruses like influenza or SARS-CoV-2, which infect the respiratory tract. Hepatitis B is not a respiratory virus; it does not replicate in the lungs or shed through coughing and sneezing. Therefore, being in the same room as an infected person or breathing the same air does not pose a risk for contracting the virus. Transmission requires more direct contact with specific internal body fluids.
Choice C rationale
Contaminated food and water are vehicles for enterically transmitted viruses like Hepatitis A and E. These viruses are shed in the feces and enter the new host through the mouth. Hepatitis B, however, is not shed in feces in significant amounts and is not hardy enough to survive the digestive processes or environmental conditions typical of foodborne transmission. Consequently, eating food prepared by someone with Hepatitis B is not considered a significant risk.
Choice D rationale
Casual contact, such as hugging, shaking hands, or sharing utensils, does not transmit Hepatitis B. The virus cannot penetrate intact skin and is not found in sweat or tears in levels sufficient for transmission. Education regarding this is vital to reduce the stigma associated with the diagnosis. Patients do not need to be isolated from family members in a household setting, provided they do not share personal items like razors or toothbrushes.
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