Altitude and Diving Physiology Practice Questions

Question 1

Which of the following statements are correct regarding primary survey/management of traumatic head injury patient?
I. Ensure adequate oxygenation and circulation
II. Exclude hypoglycaemia
III. Check for mechanism of injury
IV. Check pupil size and response

Select the answer using the code given below :

Accepted Answer

I, II and IV

Answer

II, III and IV

Answer

I, III and IV

Answer

I, II and III

Question 2

A 45-year-old woman presents with shortness of breath and cyanosis. Arterial blood gas shows a low oxygen saturation despite a normal PaO2. What is the most likely diagnosis?

Accepted Answer

Carbon monoxide poisoning

Answer

Pulmonary embolism

Answer

Asthma

Answer

Pneumonia

Question 3

In an accident case, after the arrival of medical team, all should be done in early management except;

Accepted Answer

Check BP

Answer

Glasgow coma scale

Answer

Stabilization of cervical vertebrae

Answer

Check Respiration

Question 4

Compensating mechanism involved in acclimatization to altitude is:

Accepted Answer

Hyperventilation

Answer

Respiratory depression

Answer

Hypoventilation

Answer

Respiratory acidosis

Question 5

Which drug is given to prevent acute mountain sickness?

Accepted Answer

Acetazolamide

Answer

Diltiazem

Answer

Digoxin

Answer

Dexamethasone

Question 6

Which of the following is seen in high altitude climbers?

Accepted Answer

All of the options

Answer

Hyperventilation

Answer

Pulmonary edema

Answer

Decreased PaCO2

Question 7

What is the primary physiological effect of increased 2,3-DPG on hemoglobin?

Accepted Answer

Decreased affinity of hemoglobin to oxygen

Answer

Increased affinity of hemoglobin to oxygen

Answer

Left shift of oxygen-hemoglobin dissociation curve

Answer

Right shift of oxygen-hemoglobin dissociation curve

Question 8

Which of the following is the most important clinical principle regarding acute high-altitude pulmonary edema (HAPE)?

Accepted Answer

The primary treatment for HAPE is immediate descent to a lower altitude.

Answer

HAPE is more common at altitudes above 2500 meters but can occur at lower altitudes.

Answer

Elevated ESR is the most specific diagnostic marker for HAPE

Answer

HAPE only occurs at altitudes above 4000 meters

Question 9

What is the most immediate hematological adaptation that occurs during high-altitude exposure to improve oxygen delivery to tissues?

Accepted Answer

Increased 2,3-BPG levels

Answer

Increased red blood cell mass

Answer

Reduced erythropoietin production

Answer

Increased white blood cell count

Question 10

All are examples of negative feedback except

Accepted Answer

Coagulation of the blood

Answer

Regulation of blood CO2 level

Answer

Regulation of pituitary hormones

Answer

Regulation of blood pressure

Altitude and Diving Physiology

Study Resources

Lessons

Questions

Flashcards

Lessons

Atmospheric Pressure and Gas Laws

High Altitude Acclimatization

Hypoxia and Oxygen Transport

Altitude Illnesses

Hyperbaric Environments

Decompression Theory

Physiology of Breath-Hold Diving

Nitrogen Narcosis

Oxygen Toxicity

Fitness for Altitude and Diving

Practice Questions

Flashcards

About Altitude and Diving Physiology for NEET-PG

Lessons in Altitude and Diving Physiology

Master Altitude and Diving Physiology