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PN 4006 Midterm Exam (Latest 2025/ 2026 Update) Review Q/A | Grade A| 100% Correct (Verified Answers)

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PN 4006 Midterm Exam (Latest 2025/ 2026 Update) Review Q/A | Grade A| 100% Correct (Verified Answers) QUESTION how do the lungs act as an acid base buffer? Answer: by increasing respiratory rate and depth when CO2 levels in the blood are high, thereby reducing acid load QUESTION normal blood pH Answer: 7.35-7.45 lower = acidic QUESTION Normal PaO2 levels Answer: 75-100 mmHg QUESTION Normal PaCO2 range Answer: 35-45 mmHg higher = acidic QUESTION Normal HCO3 range (bicarbonate) Answer: 22-26 mEq/L lower = acidic QUESTION compensated vs uncompensated ABGs Answer: if the pH is in range despite other factors being out of range, it means it is compensated (body is compensating to make the pH normal) if fully compensated, check whether it is leaning high or low to determine if it is acidosis or alkalosis QUESTION try: pH = 7.30 PaCO2 = 50

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Institution
PN 4006
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PN 4006

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PNl 4006l Midterml Examl (Latestl 2025/l
2026l Update)l Reviewl Q/Al |l Gradel A|l
100%l Correctl (Verifiedl Answers)

Q:l howl dol thel lungsl actl asl anl acidl basel buffer?

Answer:
l byl increasingl respiratoryl ratel andl depthl whenl CO2l levelsl inl thel bloodl
arel high,l therebyl reducingl acidl load



Q:l normall bloodl pH

Answer:
l 7.35-7.45

lowerl =l acidic



Q:l Normall PaO2l levels

Answer:
l 75-100l mmHg



Q:l Normall PaCO2l range

Answer:

, l 35-45l mmHg

higherl =l acidic



Q:l Normall HCO3l rangel (bicarbonate)

Answer:
l 22-26l mEq/L

lowerl =l acidic



Q:l compensatedl vsl uncompensatedl ABGs

Answer:
l ifl thel pHl isl inl rangel despitel otherl factorsl beingl outl ofl range,l itl meansl
itl isl compensatedl (bodyl isl compensatingl tol makel thel pHl normal)

ifl fullyl compensated,l checkl whetherl itl isl leaningl highl orl lowl tol determinel
ifl itl isl acidosisl orl alkalosis



Q:l try:
pHl =l 7.30
PaCO2l =l 50
HCO3-l =l 30

Answer:
l partiallyl compensatedl respiratoryl acidosis

1.l thel pHl isl 7.30.l Thisl isl lowerl thanl normal,l sol wel havel anl acidosis.
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