Answer:
( a ) Voltage gated channels - channel can open and close based on membrane potential. At rest, the channel is closed and it opens at threshold.
Explanation:
Voltage Gated Channels -
It is a channel with a cluster of proteins present in the membrane .
The function of voltage - gated channel is to open for the some values of membrane potential and close for others . In maximum cases , the relation between channel state and membrane potential is probabilistic and requires a time lag . The ion channel can even flip the conformations at an unpredictable times , the membrane potential even determines the rate of transition and the probability per unit time of each and every transition .
Answer:
A.)
Explanation:
Because increased testosterone causes a worsening of acne.
Consider transfusion if hemoglobin is 8 g/dL or below or if there are symptoms (chest pain, orthostatic hypotension or tachycardia unresponsive to fluid resuscitation, or congestive heart failure).
For inpatients with active acute coronary syndromes and a Hb level less than 8 g/dL, transfusion should be taken into consideration. Adult critical care medical and surgical inpatients with an Hb level less than 10 g/dL may receive a transfusion while receiving sepsis treatment within the first six hours of resuscitation. Acute sickle cell crisis, acute blood loss of more than 30% of blood volume, and symptomatic anemia (which results in shortness of breath, fainting, congestive heart failure, and decreased exercise tolerance) are all indications for transfusion.
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Specifics from the scenario
Lasix is prescribed along with Accupril to the hypertensive patient because;
- High blood pressure reading of 150/92 in spite of being on the antihypertensive Accupril for the past four months
- Bilateral lower extremity edema.
Explanation:
Blood pressure medications which act as calcium channel blockers like Accupril will widen the constricted blood vessels to allow for more blood and fluid to flow easily.
This sometimes leads to an excess amount of fluid in the circulatory system which gets accumulated in the lower extremities. This leads to edema of the feet, especially in the ankle region.
To treat this fluid accumulation in the feet, a diuretic class drugs are prescribed as an adjuvant. Loop diuretics like Lasix (furosemide) act by lowering the blood pressure as well as reducing the fluid content by increased urine output.