The following are found in higher concentration in the tear than in the serum: a. sodium b. potassium c. Ig G d. glucose

The following are found in higher concentration in the tear than in the serum:
a. sodium
b. potassium
c. Ig G
d. glucose
by

1 Answer

Answer :

potassium
by

Related questions

The tear film: a. has a higher pH than the serum b. has a lower concentration of glucose than the serum c. the oily component is secreted by the meibomian glands d. all above

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The following are true about the tear film: a. the normal volume is about 20 ul b. its main protein content is made up of immunoglobulins c. the lysozyme concentration is the greatest d. the concentration of Ig A is greater than that of Ig G

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The immunoglobulin having least concentration in serum is (A) Ig A (B) Ig M (C) Ig D (D) Ig E

Description : The immunoglobulin having least concentration in serum is (A) Ig A (B) Ig M (C) Ig D (D) Ig E

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The normal serum level of Ig G is (A) 1200 mg% (B) 500 mg% (C) 300 mg% (D) 200 mg%

Description : The normal serum level of Ig G is (A) 1200 mg% (B) 500 mg% (C) 300 mg% (D) 200 mg%

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Most abundant Ig G subclass in the serum is (A) Ig G1 (B) Ig G2 (C) Ig G3 (D) Ig G4

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Ig G: a. has a molecular weight of 150000 b. is the principal immunoglobulin in secondary immune response c. is the most common circulating immunoglobulins in the serum d. all above

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The following have a lower concentration in the cerebrospinal fluid (CSF) than plasma: a. glucose b. sodium c. potassium d. magnesium

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Rank the following laboratory tests and procedures in terms of their relative value to a 65-year-old woman who is to undergo elective resection of a sigmoid cancer. A. Carcinoembryonic antigen (CEA). B. Blood urea nitrogen (BUN). C. Electrocardiogram (ECG). D. Hemoglobin concentration (Hgb). E. Serum creatinine (Cr). F. Arterial blood oxygen tension (PaO 2) on room air. G. Serum sodium concentration (Na+).

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Which of the following statements are true of a patient with hyperglycemia and hyponatremia? A. The sodium concentration must be corrected by 5 mEq. per 100 mg. per 100 ml. elevation in blood glucose. B. With normal renal function, this patient is likely to be volume overloaded. C. Proper fluid therapy would be unlikely to include potassium administration. D. Insulin administration will increase the potassium content of cells. E. Early in treatment adequate urine output is a reliable measure of adequate volume resuscitation.

Description : Which of the following statements are true of a patient with hyperglycemia and hyponatremia? A. The sodium concentration must be corrected by 5 mEq. per 100 mg. per 100 ml. elevation in blood ... . E. Early in treatment adequate urine output is a reliable measure of adequate volume resuscitation.

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Concentration of the following is higher in intracellular fluid than in extracellular fluid: (A) Sodium (B) Potassium (C) Chloride (D) Bicarbonate

Description : Concentration of the following is higher in intracellular fluid than in extracellular fluid: (A) Sodium (B) Potassium (C) Chloride (D) Bicarbonate

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The following are true about the lens: a. it has a higher concentration of sodium than potassium b. it has the highest concentration of protein than other organs in the body c. 90% of proteins in the lens are water-soluble d. gluthatione is reduced in cataract

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In the lens: a. the potassium concentration is higher than that of the sodium b. the majority of the lens protein are water soluble c. glutathione is increased in the presence of cataract d. all above

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The immunoglobulin possessing highest concentration of carbohydrate is (A) Ig G (B) Ig M (C) Ig A (D) Ig D

Description : The immunoglobulin possessing highest concentration of carbohydrate is (A) Ig G (B) Ig M (C) Ig A (D) Ig D

Last Answer : Answer : D

The immunoglobulin possessing lowest concentration of carbohydrate is (A) Ig A (B) Ig E (C) Ig M (D) Ig G

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A 53-year-old man presented with hypertension of 150/110 mmHg. He is generally asymptomatic and has no previous medical history of note. He is a smoker of 5 cigarettes daily and drinks modest quantities of alcohol. He takes no prescribed medications. Examination reveals a BMI of 33.5 kg/2 but nil else. The following detail his investigations: Serum sodium 146 mmol/l (NR 133-145) Serum potassium 3.2 mmol/l (NR 3.5 - 5) Urinary potassium excretion 42 mmol/l (NR less than 30) What is the likely diagnosis? 1) Adrenocortical adenoma 2) Bartter's syndrome 3) Liddle's syndrome 4) Liquorice ingestion 5) Pheochromocytoma

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Last Answer : Answers-1 This patient is most likely to have Conn's syndrome as reflected by the hypokalaemic hypertension. Liquorice ingestion or Liddle's syndrome are again possible causes of ... hypertension (often diastolic hypertension), muscular weakness, paresthesias, headache, polyuria, and polydipsia."

One of the symptoms of low serum potassium concentration includes (A) Muscle weakness (B) Confusion (C) Numbness (D) Tingling of extremities WATER AND ELECTROLYTE BALANCE 283

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The following statement(s) is/are true concerning initial microbiologic diagnostic techniques. a. Appropriate expeditious transport of specimens to the microbiology laboratory is essential for obtaining accurate clinical information b. The use of potassium hydroxide in preparing a specimen slide for light microscopy will be useful in identification of anaerobic bacteria c. Antibiotic sensitivity is determined by exposing the specific microorganism to varying amounts of antibiotic with the concentration of the antibiotic inhibiting growth referred to as the MIC (minimal inhibitory concentration) d. Serum levels of antimicrobial agents should achieve in excess of a 4-to 8-fold increase over the MIC to be considered clinically efficacious.

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The normal serum level of Ig A is (A) 100 mg% (B) 200 mg% (C) 300 mg% (D) 400 mg%

Description : The normal serum level of Ig A is (A) 100 mg% (B) 200 mg% (C) 300 mg% (D) 400 mg%

Last Answer : Answer : B

The normal serum level of Ig M is (A) 50 mg% (B) 120 mg% (C) 200 mg% (D) 300 mg%

Description : The normal serum level of Ig M is (A) 50 mg% (B) 120 mg% (C) 200 mg% (D) 300 mg%

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The normal serum level of Ig D is (A) 1 mg% (B) 2 mg% (C) 3 mg% (D) 5 mg%

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On the surgical removal of pituitary gland, there is a fall of sodium level and rise in potassium in serum. This is because

Description : On the surgical removal of pituitary gland, there is a fall of sodium level and rise in potassium in serum. This is because

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A 15-year-old girl was seen by her family physician because of increasing lethargy. She had a recent history of the "flu". Biochemistry tests show that she has renal impairement. serum sodium 140 mmol/L (137 - 144) serum potassium 4.2 mmol/L (3.5 - 4.9) serum urea 28 mol/L (2.5 - 7.5) serum creatinine 280 µmol/L (60 - 110) Her condition does not improve after several weeks on corticosteroid therapy, so a renal biopsy is performed. The biopsy demonstrates the presence of segmental sclerosis of 3 of 10 glomeruli identified in the biopsy specimen. Immunofluorescence studies and electron microscopy do not reveal evidence for immune deposits. What is the most appropriate advice to give regarding her condition? 1) She has an underlying malignancy 2) She may require a renal transplant in 10 years

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Last Answer : Answers-2 The findings point to focal segmental glomerulosclerosis (FSGS), which leads to chronic renal failure in half of cases. The lack of resolution with corticosteroid therapy and the progression to chronic renal failure is what sets FSGS apart from minimal change disease.

A 75 year old man presents with a long history of shortness of breath and ankle oedema. His serum biochemistry shows sodium 122 mmols/l and potassium of 2.9 mmols/l. He now complains of weakness.Which of the following is likely to explain the above biochemical picture? 1) Addison's Disease 2) Nephrotic syndrome 3) Primary hyperaldosteronism 4) SIADH 5) Diuretic therapy

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Last Answer : Answers-5 The long history of his symptoms and serum biochemistry suggests that his condition is due to treatment with frusemide for CCF.

The normal serum value for potassium is a) 3.5-5.5 mEq/L. Serum potassium must be within normal limits to prevent cardiac dysrhythmias. b) 135-145 mEq/L. Normal serum sodium is 135-145 mEq/L. c) 96-106 mEq/L. Normal serum chloride is 96-106 mEq/L. d) 8.5-10.5 mg/dL. Normal total serum calcium is 8.5-10.5mg/dL.

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The following are true about the aqueous: a. the protein content of aqueous is about 1/5 that of the plasma b. the main type of protein found in the aqueous is transferrin c. Ig G is found in the aqueous d. stimulation of 2 receptors reduces aqueous production

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The following are true about lymphocytes: a. T cells account for 20% of the circulating lymphocytes b. in the spleen, B cells are found in the periarteriolar areas of white pulp c. in the lymph nodes, T cells occupy the paracortical area surrounding the germinal centres. d. B cells but not T cells express surface Ig G

Description : The following are true about lymphocytes: a. T cells account for 20% of the circulating lymphocytes b. in the spleen, B cells are found in the periarteriolar areas of white pulp c. in the ... paracortical area surrounding the germinal centres. d. B cells but not T cells express surface Ig G

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An extracellular fluid having a higher concentration of chloride than serum is (A) Bile (B) Sweat (C) CSF (D) Pancreatic juice

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The correct statement about serum inorganic phosphorous concentration is (A) It is higher in men than in women (B) It is higher in women than in men (C) It is higher in adults than in children (D) It is higher in children than in adults

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Which of the following complications of TPN are appropriately managed with the listed treatment? a. Air embolism—place patient in reverse Trendelenburg and the left lateral decubitus position and aspirate venous air b. Hyperchloremic metabolic acidosis—give sodium and potassium as acetate salts c. Carbon dioxide retention—decrease glucose calories and replace with fat d. Line sepsis—intravenous antibiotics

Description : Which of the following complications of TPN are appropriately managed with the listed treatment? a. Air embolism-place patient in reverse Trendelenburg and the left lateral decubitus position ... dioxide retention-decrease glucose calories and replace with fat d. Line sepsis-intravenous antibiotics

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Which of the following is activated by Cholera toxin? 1) Adenylate cyclase 2) Guanlyate cyclase 3) Peroxisome proliferator receptor (PPAR) gamma 4) Sodium/potassium ATPase 5) The glucose-sodium transporter

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What process does the higher concentration of potassium than the surrounding blood plasma?

Description : What process does the higher concentration of potassium than the surrounding blood plasma?

Last Answer : Feel Free to Answer

The human lens: a. has a higher refractive index in the nucleus than the cortex b. contains a higher potassium concentration than the aqueous c. contains a higher concentration of sorbitol in diabetic patient than normal population d. all above

Description : The human lens: a. has a higher refractive index in the nucleus than the cortex b. contains a higher potassium concentration than the aqueous c. contains a higher concentration of sorbitol in diabetic patient than normal population d. all above

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One of the potent st imu lators of aldosterone secretion is (A) Increased sodium concentration (B) Decreased potassium concentration (C) Increased potassium concentration (D) Increased ECF volume

Description : One of the potent st imu lators of aldosterone secretion is (A) Increased sodium concentration (B) Decreased potassium concentration (C) Increased potassium concentration (D) Increased ECF volume

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A striking feature of living cells is a marked difference between the composition of the cytosol and the extracellular milieu. Which of the following statement(s) concerning the mechanisms of maintenance of these differences is/are true? a. The cell membrane is able to maintain a 10,000 fold gradient between the extracellular concentration of ionized calcium and the intracellular concentration b. The key to these differences is the fact that the plasma membrane is normally impermeable to sodium, potassium and calcium c. The selectivity of biologic membranes is highly consistent and seldom changes d. The selectivity of cell membranes relates only to ions and not organic compounds

Description : A striking feature of living cells is a marked difference between the composition of the cytosol and the extracellular milieu. Which of the following statement(s) concerning the mechanisms of maintenance ... d. The selectivity of cell membranes relates only to ions and not organic compounds

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Which one of the following is characteristic of captopril and enalapril ? (a) Competitively blocks angiotensim II at its receptor (b) Decreases angiotensin II concentration in the blood (c) Decreases rennin concentration in the blood (d) Increases sodium and decreases potassium in the blood (e) Decreases sodium and increases potassium in the urine

Description : Which one of the following is characteristic of captopril and enalapril ? (a) Competitively blocks angiotensim II at its receptor (b) Decreases angiotensin II concentration in the blood (c) Decreases ... and decreases potassium in the blood (e) Decreases sodium and increases potassium in the urine

Last Answer : Ans: B

Aldosterone secretion is controlled by: a. plasma sodium concentration b. plasma calcium concentration c. plasma potassium concentration d. angiotensin II

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The immunoglobulin which provides highest antiviral activity is (A) Ig D (B) Ig E (C) Ig A (D) Ig G

Description : The immunoglobulin which provides highest antiviral activity is (A) Ig D (B) Ig E (C) Ig A (D) Ig G

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The immunoglobulin having highest molecular weight is (A) Ig G (B) Ig M (C) Ig E (D) Ig A MINERAL METABOLISM 187

Description : The immunoglobulin having highest molecular weight is (A) Ig G (B) Ig M (C) Ig E (D) Ig A MINERAL METABOLISM 187

Last Answer : Answer : B

The immunoglobulin having highest sedimentation coefficient is (A) Ig G (B) Ig A (C) Ig M (D) Ig D

Description : The immunoglobulin having highest sedimentation coefficient is (A) Ig G (B) Ig A (C) Ig M (D) Ig D

Last Answer : Answer : C

Most heat labile immunoglobulin is (A) Ig G (B) Ig A (C) Ig M (D) Ig D

Description : Most heat labile immunoglobulin is (A) Ig G (B) Ig A (C) Ig M (D) Ig D

Last Answer : Answer : D

The half life of Ig G is (A) 2–8 days (B) 1–4 days (C) 19–24 days (D) 6 days

Description : The half life of Ig G is (A) 2–8 days (B) 1–4 days (C) 19–24 days (D) 6 days

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The immunoglobulin which can cross the placenta is (A) Ig A (B) Ig M (C) Ig G (D) Ig D

Description : The immunoglobulin which can cross the placenta is (A) Ig A (B) Ig M (C) Ig G (D) Ig D

Last Answer : Answer : C

The number of sub classes of Ig G is (A) 2 (B) 3 (C) 4 (D) 8

Description : The number of sub classes of Ig G is (A) 2 (B) 3 (C) 4 (D) 8

Last Answer : Answer : C

The smallest immunoglobulin is (A) Ig G (B) Ig E (C) Ig D (D) Ig A

Description : The smallest immunoglobulin is (A) Ig G (B) Ig E (C) Ig D (D) Ig A

Last Answer : Answer : A

A pentamer immunoglobulin is (A) Ig G (B) Ig A (C) Ig M (D) Ig E

Description : A pentamer immunoglobulin is (A) Ig G (B) Ig A (C) Ig M (D) Ig E

Last Answer : Answer : C

A ‘J’ chain is present in (A) Ig D (B) Ig M (C) Ig G (D) Ig E

Description : A ‘J’ chain is present in (A) Ig D (B) Ig M (C) Ig G (D) Ig E

Last Answer : Answer : B

Type δ H chain is present in (A) Ig G (B) Ig A (C) Ig M (D) Ig D

Description : Type δ H chain is present in (A) Ig G (B) Ig A (C) Ig M (D) Ig D

Last Answer : Answer : D

Type µ H chain is present in (A) Ig G (B) Ig A (C) Ig M (D) Ig D

Description : Type µ H chain is present in (A) Ig G (B) Ig A (C) Ig M (D) Ig D

Last Answer : Answer : C

Type γ H chain is present in (A) Ig G (B) Ig A (C) Ig M (D) Ig D

Description : Type γ H chain is present in (A) Ig G (B) Ig A (C) Ig M (D) Ig D

Last Answer : Answer : A

The following are true: a. Ig G crosses the placenta b. thymus gland is responsible for cellular immunity c. C1-9 is used by the alternative complement pathway d. eosinophils are responsible for phagocytosis

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