2024 BIOD 152 - Portage Learning Anatomy and Physiology Module 1-7 Exam With Answers (159 Solved Questions)
2024 BIOD 152 - Portage Learning Anatomy and Physiology Module 1-7 Exam With Answers provides a wealth of real exam questions, helping you prepare thoroughly for the test.
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BIOD 152- Module 7 Exam Updated 2024
What are the 2 methods of renal control mechanism? - -H+ secretion
-conversion of bicarbonate
When and where does H+ secretion occur? - -in response to pH of the extracellular fluid
-secretes through renal filtrate
Explain the conversion of bicarbonate in the renal control mechanism - -bicarbonate is
replenished in the plasma by reclaiming it from the rental filtrate
How is the renal control mechanism used during alkalosis? - renal collecting duct
intercalated cells can secrete bicarbonate while simultaneously recovering H+ to lower the
pH of the blood
Normal blood serum levels - Normal pH = 7.35-7.45
Normal PCO2 = 35-45 mm (pressure of carbon dioxide)
Normal HCO3- = 22-26 mEq/L (bicarbonate)
When is acidosis and alkalosis disorders metabolic? - isn't caused the the pressure of CO2
in the blood
When is acidosis and alkalosis disorders respiratory? - whether the cause is higher or lower
CO2 pressure in the blood
What are the 2 methods of renal control mechanism? - -H+ secretion
-conversion of bicarbonate
When and where does H+ secretion occur? - -in response to pH of the extracellular fluid
-secretes through renal filtrate
Explain the conversion of bicarbonate in the renal control mechanism - -bicarbonate is
replenished in the plasma by reclaiming it from the rental filtrate
How is the renal control mechanism used during alkalosis? - renal collecting duct
intercalated cells can secrete bicarbonate while simultaneously recovering H+ to lower the
pH of the blood
Normal blood serum levels - Normal pH = 7.35-7.45
Normal PCO2 = 35-45 mm (pressure of carbon dioxide)
Normal HCO3- = 22-26 mEq/L (bicarbonate)
When is acidosis and alkalosis disorders metabolic? - isn't caused the the pressure of CO2
in the blood
When is acidosis and alkalosis disorders respiratory? - whether the cause is higher or lower
CO2 pressure in the blood
What can happen if there is severe acidosis? below 7 pH - central nervous system is
markedly depressed causing:
-coma
-imminent death
What can happen if there is severe alkalosis? above 7.8 pH - nervous system is markedly
excited causing:
-extreme nervousness
-muscle contraction
-convulsion
-death due to the lack of breathing
What is Metabolic acidosis? - -lower pH due to lower bicarbonate concentration (HCO3)
cause of metabolic acidosis - buildup of acidic metabolic products such as acetic acid, lactic
acid, diabetic ketosis or extreme diarrhea
What is Metabolic alkalosis? - higher pH due to higher concentration of bicarbonate (HCO3)
Causes of Metabolic alkalosis - Vomiting, intake of excess antacids, and constipation
How does the respiratory system work to correct metabolic acidosis or alkalosis? -
respiratory compensation
How does the renal system attempt to correct the disorder? - renal compensation
To determine if a patient has abnormal lab values (from a blood sample): - 1. acidosis or
alkalosis
2. respiratory or metabolic
3. if multiple abnormal values: determine if 1 of the abnormal values is due to compensation
by 1 of the systems
Size and location of kidneys - -bean shaped
markedly depressed causing:
-coma
-imminent death
What can happen if there is severe alkalosis? above 7.8 pH - nervous system is markedly
excited causing:
-extreme nervousness
-muscle contraction
-convulsion
-death due to the lack of breathing
What is Metabolic acidosis? - -lower pH due to lower bicarbonate concentration (HCO3)
cause of metabolic acidosis - buildup of acidic metabolic products such as acetic acid, lactic
acid, diabetic ketosis or extreme diarrhea
What is Metabolic alkalosis? - higher pH due to higher concentration of bicarbonate (HCO3)
Causes of Metabolic alkalosis - Vomiting, intake of excess antacids, and constipation
How does the respiratory system work to correct metabolic acidosis or alkalosis? -
respiratory compensation
How does the renal system attempt to correct the disorder? - renal compensation
To determine if a patient has abnormal lab values (from a blood sample): - 1. acidosis or
alkalosis
2. respiratory or metabolic
3. if multiple abnormal values: determine if 1 of the abnormal values is due to compensation
by 1 of the systems
Size and location of kidneys - -bean shaped
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