Medical Flashcards

Which of the following does not lead to seizure activity?

Answer: Diabetes

While severe hypoglycemia or hyperglycemia associated with diabetes can cause altered mental status and even seizure-like activity, diabetes itself is not a direct cause of seizure activity in the same way as head injury, drug withdrawal, or epilepsy. Seizures are typically caused by abnormal electrical activity in the brain, not directly by the metabolic disorder of diabetes.

You arrive to find the patient actively seizing. What is your primary concern with this patient?

Answer: Airway

During an active seizure, the patient is at high risk for airway compromise due to muscle rigidity, excessive salivation, and potential aspiration of vomit or secretions. Protecting the airway is the immediate priority to ensure adequate oxygenation and prevent complications like aspiration pneumonia. Other concerns, while important, are secondary to airway management.

Your patient has a history of epYour patient has a history of epilepsy. He has had a seizure and has not recovered the way he normally does, according to his family. While assessing this unresponsive patient, he suffers a second seizure. What is this con

Answer: Status epilepticus

Status epilepticus is defined as a seizure lasting longer than 5 minutes, or two or more seizures occurring without a full recovery of consciousness between them. This condition is a medical emergency because prolonged seizure activity can lead to brain damage and other systemic complications. The patient's description of a second seizure without normal recovery fits this definition.

This type of seizure activity is absent of large muscle contractions. The patient often just stares off in space.

Answer: Petit mal

Petit mal seizures, now more commonly called absence seizures, are characterized by brief, sudden lapses of consciousness without loss of muscle tone. The patient often appears to stare blankly into space, may have subtle eye fluttering, and is unaware of their surroundings during the episode. There are no large muscle contractions, distinguishing them from grand mal seizures.

While interviewing a patient with a complaint of an allergic reaction, your partner asks, "What is new and different?" Most patients with an allergy must be exposed to the allergen at some point. What is the process called?

Answer: Sensitization

Sensitization is the initial exposure to an allergen that primes the immune system. During this first exposure, the body produces specific antibodies (IgE) that attach to mast cells and basophils. Subsequent exposures to the same allergen then trigger the release of histamine and other inflammatory mediators, leading to an allergic reaction or anaphylaxis.

Which of the following routes of entry is the most common cause of anaphylactic reaction?

Answer: Injection

Injected allergens, such as from insect stings or medications administered intravenously or intramuscularly, are the most common cause of severe anaphylactic reactions. This is because the allergen is directly introduced into the bloodstream, leading to a rapid and widespread systemic immune response. While other routes can cause reactions, injections often lead to the most severe and immediate responses.

Arriving on scene of any allergic reaction, what is the clinician's first concern regarding the patient?

Answer: Is the airway swelling and respiratory effort

In any allergic reaction, especially a severe one, airway compromise is the most immediate life threat. Swelling of the tongue, pharynx, or larynx can rapidly obstruct breathing, leading to hypoxia and death. Assessing the airway and respiratory effort first allows the clinician to identify and address this critical issue before it becomes irreversible.

Anaphylactic shock is a form of distributive shock where the blood vessels _______________?

Answer: Dilate

Anaphylactic shock is a type of distributive shock characterized by widespread vasodilation, meaning the blood vessels throughout the body widen significantly. This massive dilation leads to a dramatic decrease in systemic vascular resistance and a drop in blood pressure. This impairs blood flow to vital organs despite an adequate blood volume, leading to shock.

After aggressive airway control, the next treatment choice would be epinephrine. Why would epinephrine be such a good choice?

Answer: All of the above

Epinephrine is a crucial medication for anaphylaxis due to its multifaceted effects. It acts as a vasoconstrictor, constricting blood vessels to raise blood pressure and counteract vasodilation. Additionally, it is a bronchodilator, opening up the bronchioles to improve breathing, and it also increases heart rate and contractility, supporting cardiac output.

There are many causes of syncope. When does a syncopal episode usually happen?

Answer: Upon standing

Syncope, or fainting, is often triggered by orthostatic hypotension, a sudden drop in blood pressure when moving from a lying or sitting position to standing. This change in position causes blood to pool in the lower extremities, reducing blood flow to the brain. The brain's temporary lack of oxygen then leads to a brief loss of consciousness.

Routes of entry for accidental poisoning are the same as for allergic reactions. What route is the most common route of entry for a poisoning?

Answer: Ingestion

For accidental poisonings, especially in children, ingestion is by far the most common route of entry. This includes swallowing household cleaners, medications, plants, or other toxic substances. Children's natural curiosity and tendency to put objects in their mouths make them particularly vulnerable to this route of exposure.

There are few antidotes for the number of poisons available, so what is the treatment goal for a poisoning if there is no antidote?

Answer: Limiting the absorption

When no specific antidote exists for a poisoning, the primary treatment goal is to limit the absorption of the toxic substance into the body. This can involve interventions like activated charcoal to bind the poison in the gastrointestinal tract or gastric lavage in specific circumstances. Reducing absorption minimizes the systemic effects and allows the body more time to metabolize and excrete the poison.

Poisonous ingestions by children usually occur ____________?

Answer: accidentally

Poisonous ingestions by children are overwhelmingly accidental due to their exploratory nature and lack of understanding of danger. Young children often put anything within reach into their mouths, mistaking harmful substances for food or drink. This highlights the importance of child-proofing homes and storing toxic materials securely.

Patients who inhale poisons to get high are often referred to as _____________?

Answer: Huffers

Individuals who inhale volatile substances to achieve a euphoric effect are commonly referred to as 'huffers.' This term specifically describes the act of inhaling fumes from a soaked rag or directly from a container. This dangerous practice can lead to severe health consequences, including cardiac arrest and brain damage.

Food poisoning may be difficult in the field to diagnose due to its broad range of symptoms and the time it takes to make the patient ill. All of the following are types of food borne illness except?

Answer: Encephalitis

Salmonella, Campylobacter, and Escherichia coli (E. coli) are all common bacterial causes of foodborne illness, leading to symptoms like nausea, vomiting, diarrhea, and abdominal cramps. Encephalitis, however, is an inflammation of the brain, typically caused by viral infections, and is not a type of foodborne illness itself, although some foodborne pathogens can, in rare cases, lead to neurological complications.