Blood pH Balance

Mechanisms maintaining blood pH through buffer systems, respiratory adjustments, and renal compensation, including acid-base disorders

Level
intermediate
Languages
en → en
Cards
52
Markdown
Blood pH Balance (.md)

Flashcards (52)

#Front (Term / Question)Back (Definition / Answer)ExampleMultiple-Choice Options
1What is the physiological response to alkalosis?The physiological response includes decreased respiratory rate to retain CO2 and renal compensation to retain H+.
2What are the symptoms of acidosis?Symptoms may include confusion, fatigue, headache, and shortness of breath.
3What is the effect of diabetes on blood pH?Diabetes can lead to metabolic acidosis, particularly in diabetic ketoacidosis, due to ketone accumulation.
4What is an anion gap?The anion gap is a calculated value used to identify the cause of metabolic acidosis by measuring the difference between measured cations and anions.
5What is the relationship between blood pH and electrolyte balance?Blood pH affects and is affected by electrolyte balance, particularly potassium, sodium, and chloride levels.
6What is the Henderson-Hasselbalch equation?The Henderson-Hasselbalch equation relates pH to the concentration of bicarbonate and carbonic acid in the blood.
7What is alkalosis?Alkalosis is a condition where blood pH rises above 7.45, indicating an excess of base or a loss of acid.
8What is the role of chloride in acid-base balance?Chloride helps maintain electrical neutrality and can influence bicarbonate levels in the blood.
9What is the difference between respiratory and metabolic acidosis?Respiratory acidosis is due to CO2 retention, while metabolic acidosis is due to excess acid or bicarbonate loss.
10What is the role of dietary factors in blood pH balance?Dietary factors, such as high protein intake, can influence acid-base balance by affecting acid production and excretion.
11How can blood pH be measured?Blood pH can be measured using arterial blood gas (ABG) analysis.
12How does exercise affect blood pH?During exercise, lactic acid production can lower blood pH, leading to temporary metabolic acidosis.
13What is the effect of high altitude on blood pH?High altitude can cause respiratory alkalosis due to decreased oxygen levels and increased breathing rate.
14What are the primary buffer systems in the blood?The primary buffer systems in the blood include bicarbonate, phosphate, and protein buffers.
15What is the role of the autonomic nervous system in blood pH regulation?The autonomic nervous system regulates respiratory rate and depth, influencing CO2 levels and blood pH.
16What is lactic acidosis?Lactic acidosis is a form of metabolic acidosis caused by the accumulation of lactic acid, often due to hypoxia or intense exercise.
17What is the role of albumin in blood pH balance?Albumin acts as a protein buffer, binding to hydrogen ions and helping to stabilize blood pH.
18What is the effect of alcohol on blood pH?Alcohol can lead to metabolic acidosis due to increased acid production and impaired liver function.
19How do kidneys contribute to blood pH balance?The kidneys maintain blood pH by excreting hydrogen ions and reabsorbing bicarbonate from urine.
20What is the physiological response to acidosis?The physiological response includes increased respiratory rate to expel CO2 and renal compensation to excrete H+.
21What is the impact of chronic kidney disease on blood pH?Chronic kidney disease can lead to metabolic acidosis due to impaired acid excretion and bicarbonate reabsorption.
22What is the relationship between blood pH and oxygen transport?Blood pH affects hemoglobin's affinity for oxygen; lower pH (acidosis) decreases affinity, promoting oxygen release.
23What are common causes of metabolic acidosis?Common causes include diabetic ketoacidosis, renal failure, and lactic acidosis.
24What is the significance of blood pH in critical care?Blood pH is a vital parameter in critical care, guiding treatment decisions for acid-base disorders.
25What is the role of carbonic anhydrase in blood pH regulation?Carbonic anhydrase catalyzes the conversion of CO2 and water to carbonic acid, facilitating pH regulation.
26What is the normal range for blood pH?The normal range for blood pH is between 7.35 and 7.45.
27How does the bicarbonate buffer system work?The bicarbonate buffer system maintains pH by balancing carbonic acid (H2CO3) and bicarbonate (HCO3-) to neutralize excess acids or bases.
28What is the impact of respiratory diseases on blood pH?Respiratory diseases can lead to respiratory acidosis due to impaired gas exchange and CO2 retention.
29What is respiratory acidosis?Respiratory acidosis is a condition where blood pH decreases due to increased CO2 levels, often caused by inadequate ventilation.
30What is the significance of pKa in buffer systems?pKa indicates the pH at which a buffer system is most effective, reflecting the acid-base equilibrium.
31What is the role of hemoglobin in blood pH regulation?Hemoglobin helps buffer blood pH by binding to hydrogen ions and carbon dioxide, facilitating gas exchange.
32How does dehydration affect blood pH?Dehydration can lead to metabolic acidosis due to concentration of acids and reduced renal function.
33What is the role of the liver in acid-base balance?The liver helps maintain acid-base balance by metabolizing acids and producing bicarbonate.
34What is the role of phosphate buffers in blood pH?Phosphate buffers help maintain pH in intracellular fluid and urine, complementing bicarbonate buffers in the blood.
35What are the symptoms of alkalosis?Symptoms may include muscle twitching, hand tremors, and lightheadedness.
36What is the role of potassium in acid-base balance?Potassium levels influence acid-base balance; shifts in potassium can affect hydrogen ion concentration and pH.
37What is the significance of base excess in blood tests?Base excess indicates the amount of excess or insufficient base in the blood, helping to assess metabolic acid-base disorders.
38What is the role of the pancreas in acid-base balance?The pancreas secretes bicarbonate into the small intestine, aiding in digestion and contributing to overall acid-base balance.
39What is the effect of hyperventilation on blood pH?Hyperventilation decreases CO2 levels, leading to respiratory alkalosis and an increase in blood pH.
40What role do the lungs play in blood pH regulation?The lungs regulate blood pH by controlling the levels of carbon dioxide (CO2) through respiration, affecting carbonic acid levels.
41What is blood pH?Blood pH is a measure of the acidity or alkalinity of blood, typically ranging from 7.35 to 7.45.
42What is the primary function of the carbonic acid-bicarbonate buffer system?Its primary function is to maintain stable pH levels in the blood by neutralizing acids and bases.
43What is the effect of hypoventilation on blood pH?Hypoventilation increases CO2 levels, leading to respiratory acidosis and a decrease in blood pH.
44Why is maintaining blood pH important?Maintaining blood pH is crucial for proper cellular function, enzyme activity, and overall metabolic processes.
45What is the significance of urine pH in assessing acid-base balance?Urine pH can indicate renal compensation for metabolic or respiratory acid-base disorders.
46What is the impact of sepsis on blood pH?Sepsis can lead to metabolic acidosis due to tissue hypoperfusion and lactic acid accumulation.
47What is the relationship between pH and enzyme activity?Enzyme activity is highly dependent on pH; deviations can lead to decreased activity or denaturation.
48What is the role of the respiratory center in the brain?The respiratory center regulates breathing rate and depth to maintain appropriate blood CO2 and pH levels.
49What is metabolic acidosis?Metabolic acidosis is a condition characterized by a decrease in blood pH due to excess acid production or bicarbonate loss.
50What is the relationship between blood pH and metabolic rate?Blood pH can influence metabolic rate; acidosis may decrease metabolic activity, while alkalosis may increase it.
51What is the difference between acute and chronic acid-base disorders?Acute disorders occur suddenly and may be life-threatening, while chronic disorders develop gradually and may be managed over time.
52What is the role of sodium bicarbonate in medical treatment?Sodium bicarbonate is used to treat metabolic acidosis by increasing blood pH.