An activated monocyte is also known as a:
macrophage
lymphocyte
plasma cell
polymorphonuclear leukocyte
The Correct Answer is A
A. Macrophage: This is the correct answer. An activated monocyte is also known as a macrophage. Monocytes are white blood cells that can mature into macrophages when they move into tissues. Macrophages play a crucial role in the immune system by phagocytosing (engulfing and digesting) pathogens and cellular debris.
B. Lymphocyte: Lymphocytes are another type of white blood cell that plays a central role in the immune system. They include B cells, T cells, and natural killer cells. Lymphocytes are primarily involved in adaptive immune responses, such as antibody production (B cells) and cell-mediated immune responses (T cells).
C. Plasma Cell: Plasma cells are a type of B cell that produces antibodies (immunoglobulins). They are involved in the adaptive immune response, specifically in the production of antibodies that target specific pathogens.
D. Polymorphonuclear Leukocyte: This term typically refers to a group of white blood cells that have a multi-lobed nucleus. Neutrophils, eosinophils, and basophils are examples of polymorphonuclear leukocytes. They are involved in innate immune responses, including the phagocytosis of pathogens.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. Respiratory Function: Monitoring respiratory function is important for conditions like asthma or chronic obstructive pulmonary disease (COPD). It involves assessing lung sounds, oxygen saturation levels, and breathing patterns. This monitoring is essential to detect any signs of respiratory distress.
B. Cardiac Function: Monitoring cardiac function includes assessing heart rate, blood pressure, and rhythm. It's crucial for patients with heart conditions like heart failure or arrhythmias. This monitoring helps in identifying irregularities in heart function and provides insights into the overall cardiovascular health of the patient.
C. Renal Function: Monitoring renal function involves assessing kidney health, which includes tests like serum creatinine and glomerular filtration rate (GFR). This is vital for patients with kidney diseases or those taking medications that can impact kidney function. Monitoring renal function helps in detecting any signs of kidney impairment or failure.
D. Liver Function: Monitoring liver function involves tests like liver enzymes (AST, ALT), bilirubin levels, and albumin levels. This is essential for patients taking medications that can affect the liver, such as certain antifungals, statins, or pain relievers. Monitoring liver function helps in identifying liver damage or dysfunction early on.
Correct Answer is A
Explanation
A. "Tetracycline inhibits protein synthesis."
Tetracycline inhibits bacterial protein synthesis by binding to the bacterial ribosomes, which are crucial for making proteins. This disruption in protein synthesis prevents bacterial growth and replication.
B. "Tetracycline blocks RNA synthesis."
Tetracycline primarily affects protein synthesis, not RNA synthesis. It binds to the 30S subunit of the bacterial ribosome and disrupts the translation process.
C. "Tetracycline degrades the bacterial cell wall."
Tetracycline does not target the bacterial cell wall. Drugs like penicillin and cephalosporins work by disrupting cell wall synthesis, but tetracycline operates differently by inhibiting protein synthesis.
D. "Tetracycline binds to magnesium ions."
Tetracycline does not specifically bind to magnesium ions. Its primary mode of action involves binding to the bacterial ribosome, as mentioned in the first correct statement.
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