What is a complication of prolonged immobility?

Choice A rationale

While viral pneumonia definitely impairs gas exchange by causing interstitial inflammation and alveolar edema, it is not correct to say that viruses cause the lungs to actively resist oxygen molecules. The difficulty in treatment stems from the intracellular nature of the pathogen and the resulting host inflammatory response, rather than a chemical resistance to oxygen itself. Supplemental oxygen is often used as a supportive measure to manage the symptoms of the infection.

Choice B rationale

Antibiotics are pharmacologically designed to target specific bacterial structures or metabolic pathways, such as cell wall synthesis or 30S ribosomal subunits. Viruses lack these bacterial targets because they are non-living entities that replicate using host machinery. Therefore, antibiotics are completely ineffective against viral pneumonia unless there is a secondary bacterial infection. Misusing antibiotics for viral infections contributes to the global problem of antimicrobial resistance without providing any therapeutic benefit to the patient.

Choice C rationale

Viruses are obligate intracellular parasites that must enter a host cell to replicate. Once inside, they utilize the host's genetic machinery to produce viral proteins, making it difficult to develop drugs that kill the virus without damaging the host's own cells. Furthermore, many viruses, particularly RNA viruses, have high mutation rates. these genetic changes can lead to the rapid emergence of drug-resistant strains, making long-term pharmacological management and vaccine development exceptionally challenging and complex.

Choice D rationale

Pneumonia is a diffuse infectious process involving the lung parenchyma, characterized by inflammatory exudate within the alveoli and interstitial spaces. Surgery is not a standard or effective treatment for viral pneumonia because the infection is microscopic and spread throughout the lung tissue. Surgical intervention, such as a lobectomy, is reserved for localized structural issues like lung abscesses, tumors, or severe bronchiectasis, rather than generalized viral infections that require systemic or supportive medical care.

Choice A rationale

Oliguria, or a low urine output typically below 400 mL per day, is not a manifestation of type 1 diabetes. In fact, the opposite occurs; patients experience polyuria. High blood glucose levels exceed the renal threshold, usually above 180 mg/dL, causing glucose to spill into the urine. This creates an osmotic pull that draws large volumes of water with it, leading to excessive urination rather than the diminished output seen in renal failure or dehydration.

Choice B rationale

A lack of appetite is not characteristic of type 1 diabetes. Patients typically present with polyphagia, or excessive hunger. Because the body lacks the insulin necessary to move glucose into the cells for energy, the cells remain in a state of starvation despite high circulating blood sugar levels. This intracellular energy deficit triggers hunger signals in the brain, leading the patient to consume more food in an attempt to provide the missing cellular fuel.

Choice C rationale

Weight loss is a classic hallmark of type 1 diabetes. Despite increased food intake, the body cannot utilize glucose for energy because of the absolute insulin deficiency. Consequently, the body begins to break down stored fats and muscle tissue to provide alternative fuel sources. This rapid catabolism of adipose and protein stores leads to significant and unintentional weight loss, which is often one of the first symptoms that brings a patient to medical attention.

Choice D rationale

Night sweats are not a primary manifestation of type 1 diabetes. While they can occur during episodes of nocturnal hypoglycemia if a patient is over-treated with insulin, they are not a diagnostic sign of the disease itself. Night sweats are more commonly associated with infections like tuberculosis, certain cancers, or hormonal shifts such as menopause. In type 1 diabetes, the primary clinical focus remains on the triad of polyuria, polydipsia, and polyphagia.