N3120 Exam 4 (2025/2026) – 120+ Verified Questions & A+ Answers | ABG Interpretation, Electrolyte Imbalance, Respiratory & Cardiac Function, GI & Reproductive Assessment

N3120 Exam 4 2025/2026 Exam
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respiratory acidosis - 🧠 ANSWER ✔✔PaCO2 >45


pH <7.35

HCO3 > 26


isotonic - 🧠 ANSWER ✔✔water does not move in or out of the cell


-rashes/infection/swelling

- enlarged greater than 1cm

- hard/fixed masses


- dark velvety pigmentation - 🧠 ANSWER ✔✔abnormal results while palpating the

breast lymphnodes


135-145 - 🧠 ANSWER ✔✔normal range for sodium


3.5-5.0 - 🧠 ANSWER ✔✔normal range for potassium

,4.5-5.1 - 🧠 ANSWER ✔✔normal range for ionized calcium


1.3-2.3 - 🧠 ANSWER ✔✔normal range for magnesium


97-107 - 🧠 ANSWER ✔✔normal range for chloride


7.35-7.45 - 🧠 ANSWER ✔✔normal pH of ABG


35-45 - 🧠 ANSWER ✔✔normal PaCO2 of ABG


22-26 - 🧠 ANSWER ✔✔normal HCO3 (bicarbonate) of ABG


80-100 - 🧠 ANSWER ✔✔normal PaO2 of ABG


PaCO2 - 🧠 ANSWER ✔✔which part of ABG is responsible for respiratory balance


HCO3 - 🧠 ANSWER ✔✔which part of ABG is responsible for metabolic balance?


oxygen saturation - 🧠 ANSWER ✔✔percentage of oxygen in arterial blood


oxygenation - 🧠 ANSWER ✔✔the process of providing life-sustaining oxygen to

the body's cells


cardiac output - 🧠 ANSWER ✔✔the amt of blood pumped per minute


3.5-8.0 L - 🧠 ANSWER ✔✔average cardiac output per min for a healthy adult




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,stroke volume - 🧠 ANSWER ✔✔the quantity of blood ejected from the left

ventricle with each contraction


preload - 🧠 ANSWER ✔✔Volume of blood returned to the heart


(End diastolic volume)


afterload - 🧠 ANSWER ✔✔Resistance to left ventricular ejection


myocardial fibers - 🧠 ANSWER ✔✔specialized fibers for conduction, connect S-A

and A-V nodes


starlings law - 🧠 ANSWER ✔✔states the stroke volume of the heart increases in

response to blood filling the heart


hypoxia - 🧠 ANSWER ✔✔inadequate amount of oxygen availible to the cells


dyspnea - 🧠 ANSWER ✔✔difficulty breathing


hypoventilation - 🧠 ANSWER ✔✔decreased rate or depth of air movement into the

lungs


97 - 🧠 ANSWER ✔✔what percentage of oxygen is carried by RBCs in the form of

oxyhemoglobin?




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, restlessness, anxiety, tachycardia/tachypnea - 🧠 ANSWER ✔✔the early symptoms

of hypoxia


bradycardia, extreme restlessness, dyspnea - 🧠 ANSWER ✔✔later symproms of

hypoxia


atriums - 🧠 ANSWER ✔✔which part of the heart recieves blood from the veins?


ventricles - 🧠 ANSWER ✔✔which part of the heart forces blood out of the heart

thru the arteries?

- Lungs are transformed from fluid-filled structures to air-filled organs.

-The infants chest is small, airways are short, and aspiration is a potential problem.

-Rapid RR

- primarily abdominal breathing

-Synthetic surfactant can be given to the infant to reopen alveoli.

-Crackles heard at the end of deep respiration are normal. - 🧠 ANSWER

✔✔respiratory activity in the infant


-Some subcutaneous fat is deposited on the chest wall, making landmarks less

prominent.

-Eustachian tubes, bronchi, and bronchioles are elongated and less angular.

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