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Prolonged immobilization, such as during hospitalization or after surgery, is a significant risk factor for the development of DVT. Other risk factors include age over 65, obesity, and cancer, but among hospitalized patients, immobilization is the most common precipitating factor for venous thrombosis.
What is the primary risk factor for deep vein thrombosis (DVT) in hospitalized patients?
1) Age over 65
2) Prolonged immobilization
3) Obesity
4) Cancer
Respiratory alkalosis is most commonly caused by hyperventilation, which can occur due to anxiety, pain, fever, hypoxia, and certain neurological conditions.
What is the most common cause of respiratory alkalosis?
1) Hyperventilation
2) Metabolic acidosis
3) Respiratory acidosis
4) Excessive ingestion of antacids
In a patient with a suspected STEMI, the characteristic ECG findings include ST elevation in the anterolateral leads (I, aVL, V1-V6) and reciprocal ST depression in the inferior leads (II, III, aVF). The pattern of ST elevation in the anterolateral leads with reciprocal depression in the inferior leads is most indicative of a STEMI affecting the anterolateral wall of the heart.
In a patient with suspected acute coronary syndrome, which of the following ECG changes is most indicative of an ST-elevation myocardial infarction (STEMI)?
1) ST depression in leads II, III, and aVF
2) ST elevation in leads I and aVL
3) ST elevation in leads V1-V4 with reciprocal depression in leads II, III, and aVF
4) ST elevation in leads II, III, and aVF
The definitive treatment for a pneumothorax is the insertion of a chest tube, which allows the evacuation of air or gas from the pleural space and the re-expansion of the lung. This is crucial for alleviating the symptoms and preventing the condition from progressing to a tension pneumothorax, which can be life-threatening. Other treatments may include oxygen therapy and pain management.
What is the primary treatment for a pneumothorax?
(1) Inhalation of oxygen
(2) Chest tube placement
(3) Pleural fluid drainage
(4) Anti-inflammatory medication
In early Huntington's disease, common behavioral symptoms include depression, apathy, irritability, and social withdrawal. Hyperactivity is not a typical early symptom; rather, the disease is more associated with a decline in motor function and increased involuntary movements (chorea).
Which of the following is NOT a common behavioral symptom in early Huntington's disease?
(1) Depression
(2) Apathy
(3) Hyperactivity
(4) Social withdrawal
Nephrotic syndrome is associated with hyperlipidemia, particularly increased levels of LDL and cholesterol. The underlying mechanism involves the loss of albumin in the urine, which leads to hypoalbuminemia. This causes an increased synthesis of very low-density lipoproteins (VLDL) by the liver to compensate for the loss of oncotic pressure. Additionally, the loss of proteins that normally bind to cholesterol in the blood, such as lipoproteins, results in decreased clearance of LDL.
In a patient with nephrotic syndrome, which of the following is true regarding plasma cholesterol levels?
(1) Plasma cholesterol levels are decreased due to increased LDL receptors in the liver.
(2) Plasma cholesterol levels are increased due to the loss of cholesterol in urine.
(3) Plasma cholesterol levels are normal as the condition is unrelated to lipid metabolism.
(4) Plasma cholesterol levels are decreased due to increased hepatic synthesis of bile salts.
Type 2 diabetes is primarily associated with insulin resistance, where the body's cells do not respond effectively to insulin.
Which type of diabetes is generally associated with insulin resistance?
1) Type 1 Diabetes
2) Type 2 Diabetes
3) Gestational Diabetes
4) Maturity Onset Diabetes of the Young (MODY)
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